diff --git a/CMakeLists.txt b/CMakeLists.txt
index 410d4214..0875b105 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -616,7 +616,7 @@ set (hs_exec_SRCS
     src/nfa/tamarama_internal.h
     src/nfa/truffle.cpp
     src/nfa/truffle.h
-    src/nfa/vermicelli.h
+    src/nfa/vermicelli.hpp
     src/nfa/vermicelli_run.h
     src/nfa/vermicelli_simd.cpp
     src/som/som.h
diff --git a/src/hwlm/hwlm.c b/src/hwlm/hwlm.c
index 5d69e3c4..e50deff7 100644
--- a/src/hwlm/hwlm.c
+++ b/src/hwlm/hwlm.c
@@ -39,7 +39,6 @@
 #include "nfa/accel.h"
 #include "nfa/shufti.h"
 #include "nfa/truffle.h"
-#include "nfa/vermicelli.h"
 #include "nfa/vermicelli.hpp"
 #include <string.h>
 
diff --git a/src/nfa/accel.c b/src/nfa/accel.c
index b35e0633..7661b7a7 100644
--- a/src/nfa/accel.c
+++ b/src/nfa/accel.c
@@ -30,7 +30,6 @@
 #include "accel.h"
 #include "shufti.h"
 #include "truffle.h"
-#include "vermicelli.h"
 #include "vermicelli.hpp"
 #include "ue2common.h"
 
diff --git a/src/nfa/castle.c b/src/nfa/castle.c
index be29ca29..29208f8d 100644
--- a/src/nfa/castle.c
+++ b/src/nfa/castle.c
@@ -40,7 +40,6 @@
 #include "repeat.h"
 #include "shufti.h"
 #include "truffle.h"
-#include "vermicelli.h"
 #include "vermicelli.hpp"
 #include "util/bitutils.h"
 #include "util/multibit.h"
diff --git a/src/nfa/lbr.c b/src/nfa/lbr.c
index 8fc83988..52e81ad6 100644
--- a/src/nfa/lbr.c
+++ b/src/nfa/lbr.c
@@ -40,7 +40,6 @@
 #include "repeat_internal.h"
 #include "shufti.h"
 #include "truffle.h"
-#include "vermicelli.h"
 #include "vermicelli.hpp"
 #include "util/partial_store.h"
 #include "util/unaligned.h"
@@ -534,4 +533,4 @@ char lbrFwdScanTruf(const struct NFA *nfa, const u8 *buf,
 
 #ifdef HAVE_SVE2
 #include "lbr_sve.h"
-#endif
\ No newline at end of file
+#endif
diff --git a/src/nfa/limex_accel.c b/src/nfa/limex_accel.c
index 4834b6a5..a85d5a07 100644
--- a/src/nfa/limex_accel.c
+++ b/src/nfa/limex_accel.c
@@ -40,7 +40,7 @@
 #include "shufti.h"
 #include "truffle.h"
 #include "ue2common.h"
-#include "vermicelli.h"
+#include "vermicelli.hpp"
 #include "util/arch.h"
 #include "util/bitutils.h"
 #include "util/simd_utils.h"
diff --git a/src/nfa/mpv.c b/src/nfa/mpv.c
index 5829d43d..cba3d159 100644
--- a/src/nfa/mpv.c
+++ b/src/nfa/mpv.c
@@ -36,7 +36,7 @@
 #include "shufti.h"
 #include "truffle.h"
 #include "ue2common.h"
-#include "vermicelli.h"
+#include "vermicelli.hpp"
 #include "vermicelli_run.h"
 #include "util/multibit.h"
 #include "util/partial_store.h"
diff --git a/src/nfa/nfa_rev_api.h b/src/nfa/nfa_rev_api.h
index 72224c3b..d82c52a4 100644
--- a/src/nfa/nfa_rev_api.h
+++ b/src/nfa/nfa_rev_api.h
@@ -35,7 +35,6 @@
 
 #include "accel.h"
 #include "nfa_internal.h"
-#include "vermicelli.h"
 #include "vermicelli.hpp"
 #include "util/unaligned.h"
 
diff --git a/src/nfa/vermicelli.h b/src/nfa/vermicelli.h
deleted file mode 100644
index 39e9555e..00000000
--- a/src/nfa/vermicelli.h
+++ /dev/null
@@ -1,119 +0,0 @@
-/*
- * Copyright (c) 2015-2020, Intel Corporation
- * Copyright (c) 2021, Arm Limited
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  * Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *  * Neither the name of Intel Corporation nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-/** \file
- * \brief Vermicelli: single-byte and double-byte acceleration.
- */
-
-#ifndef VERMICELLI_H
-#define VERMICELLI_H
-
-#include "util/bitutils.h"
-#include "util/simd_utils.h"
-#include "util/unaligned.h"
-
-#if !defined(HAVE_AVX512)
-#include "vermicelli_common.h"
-#endif
-
-#ifdef HAVE_SVE2
-#include "vermicelli_sve.h"
-#endif
-
-static really_inline
-const u8 *vermicelliDoubleMaskedExec(char c1, char c2, char m1, char m2,
-                                     const u8 *buf, const u8 *buf_end) {
-    DEBUG_PRINTF("double verm scan (\\x%02hhx&\\x%02hhx)(\\x%02hhx&\\x%02hhx) "
-                 "over %zu bytes\n", c1, m1, c2, m2, (size_t)(buf_end - buf));
-    assert(buf < buf_end);
-
-    VERM_TYPE chars1 = VERM_SET_FN(c1);
-    VERM_TYPE chars2 = VERM_SET_FN(c2);
-    VERM_TYPE mask1 = VERM_SET_FN(m1);
-    VERM_TYPE mask2 = VERM_SET_FN(m2);
-
-#ifdef HAVE_AVX512
-    if (buf_end - buf <= VERM_BOUNDARY) {
-        const u8 *ptr = dvermMiniMasked(chars1, chars2, mask1, mask2, buf,
-                                        buf_end);
-        if (ptr) {
-            return ptr;
-        }
-
-        /* check for partial match at end */
-        if ((buf_end[-1] & m1) == (u8)c1) {
-            DEBUG_PRINTF("partial!!!\n");
-            return buf_end - 1;
-        }
-
-        return buf_end;
-    }
-#endif
-
-    assert((buf_end - buf) >= VERM_BOUNDARY);
-    uintptr_t min = (uintptr_t)buf % VERM_BOUNDARY;
-    if (min) {
-        // Input isn't aligned, so we need to run one iteration with an
-        // unaligned load, then skip buf forward to the next aligned address.
-        // There's some small overlap here, but we don't mind scanning it twice
-        // if we can do it quickly, do we?
-        const u8 *p = dvermPreconditionMasked(chars1, chars2, mask1, mask2, buf);
-        if (p) {
-            return p;
-        }
-
-        buf += VERM_BOUNDARY - min;
-        assert(buf < buf_end);
-    }
-
-    // Aligned loops from here on in
-    const u8 *ptr = dvermSearchAlignedMasked(chars1, chars2, mask1, mask2, c1,
-                                             c2, m1, m2, buf, buf_end);
-    if (ptr) {
-        return ptr;
-    }
-
-    // Tidy up the mess at the end
-    ptr = dvermPreconditionMasked(chars1, chars2, mask1, mask2,
-                                  buf_end - VERM_BOUNDARY);
-
-    if (ptr) {
-        return ptr;
-    }
-
-    /* check for partial match at end */
-    if ((buf_end[-1] & m1) == (u8)c1) {
-        DEBUG_PRINTF("partial!!!\n");
-        return buf_end - 1;
-    }
-
-    return buf_end;
-}
-
-#endif /* VERMICELLI_H */
diff --git a/src/nfa/vermicelli_common.h b/src/nfa/vermicelli_common.h
deleted file mode 100644
index aca58dcb..00000000
--- a/src/nfa/vermicelli_common.h
+++ /dev/null
@@ -1,79 +0,0 @@
-/*
- * Copyright (c) 2015-2020, Intel Corporation
- * Copyright (c) 2021, Arm Limited
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- *  * Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- *  * Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *  * Neither the name of Intel Corporation nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-/** \file
- * \brief Vermicelli: Implementation shared between architectures.
- *
- * (users should include vermicelli.h instead of this)
- */
-
-#define VERM_BOUNDARY 16
-#define VERM_TYPE m128
-#define VERM_SET_FN set1_16x8
-
-// returns NULL if not found
-static really_inline
-const u8 *dvermPreconditionMasked(m128 chars1, m128 chars2,
-                                  m128 mask1, m128 mask2, const u8 *buf) {
-    m128 data = loadu128(buf); // unaligned
-    m128 v1 = eq128(chars1, and128(data, mask1));
-    m128 v2 = eq128(chars2, and128(data, mask2));
-    u32 z = movemask128(and128(v1, rshiftbyte_m128(v2, 1)));
-
-    /* no fixup of the boundary required - the aligned run will pick it up */
-    if (unlikely(z)) {
-        u32 pos = ctz32(z);
-        return buf + pos;
-    }
-    return NULL;
-}
-
-static really_inline
-const u8 *dvermSearchAlignedMasked(m128 chars1, m128 chars2,
-                                   m128 mask1, m128 mask2, u8 c1, u8 c2, u8 m1,
-                                   u8 m2, const u8 *buf, const u8 *buf_end) {
-    assert((size_t)buf % 16 == 0);
-
-    for (; buf + 16 < buf_end; buf += 16) {
-        m128 data = load128(buf);
-        m128 v1 = eq128(chars1, and128(data, mask1));
-        m128 v2 = eq128(chars2, and128(data, mask2));
-        u32 z = movemask128(and128(v1, rshiftbyte_m128(v2, 1)));
-
-        if ((buf[15] & m1) == c1 && (buf[16] & m2) == c2) {
-            z |= (1 << 15);
-        }
-        if (unlikely(z)) {
-            u32 pos = ctz32(z);
-            return buf + pos;
-        }
-    }
-
-    return NULL;
-}
\ No newline at end of file
diff --git a/src/nfa/vermicelli_run.h b/src/nfa/vermicelli_run.h
index b75f1414..1deda48a 100644
--- a/src/nfa/vermicelli_run.h
+++ b/src/nfa/vermicelli_run.h
@@ -26,9 +26,11 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include "vermicelli.h"
 #include "vermicelli.hpp"
 
+#define VERM_BOUNDARY 16
+#define VERM_TYPE m128
+
 static really_inline
 const u8 *find_xverm_run(char c, char nocase, u32 repeat, UNUSED const u8 *buf,
                          const u8 *buf_start, const u8 *buf_end, char negate) {
diff --git a/unit/internal/rvermicelli.cpp b/unit/internal/rvermicelli.cpp
index d29b1133..5cd52e4d 100644
--- a/unit/internal/rvermicelli.cpp
+++ b/unit/internal/rvermicelli.cpp
@@ -30,7 +30,6 @@
 #include "config.h"
 
 #include "gtest/gtest.h"
-#include "nfa/vermicelli.h"
 #include "nfa/vermicelli.hpp"
 
 #define BOUND (~(VERM_BOUNDARY - 1))
diff --git a/unit/internal/vermicelli.cpp b/unit/internal/vermicelli.cpp
index 3319b87c..e6d976ad 100644
--- a/unit/internal/vermicelli.cpp
+++ b/unit/internal/vermicelli.cpp
@@ -30,7 +30,6 @@
 #include "config.h"
 
 #include "gtest/gtest.h"
-#include "nfa/vermicelli.h"
 #include "nfa/vermicelli.hpp"
 
 TEST(Vermicelli, ExecNoMatch1) {