diff --git a/src/compiler/compiler.cpp b/src/compiler/compiler.cpp
index b2deae32..9b726f77 100644
--- a/src/compiler/compiler.cpp
+++ b/src/compiler/compiler.cpp
@@ -362,7 +362,7 @@ struct hs_database *build(NG &ng, unsigned int *length) {
     if (!rose) {
         throw CompileError("Unable to generate bytecode.");
     }
-    *length = roseSize(rose.get());
+    *length = rose.size();
     if (!*length) {
         DEBUG_PRINTF("RoseEngine has zero length\n");
         assert(0);
diff --git a/src/rose/rose_build.h b/src/rose/rose_build.h
index a14ea8ff..cbb925f7 100644
--- a/src/rose/rose_build.h
+++ b/src/rose/rose_build.h
@@ -134,8 +134,6 @@ std::unique_ptr<RoseBuild> makeRoseBuilder(ReportManager &rm,
 bool roseCheckRose(const RoseInGraph &ig, bool prefilter,
                    const ReportManager &rm, const CompileContext &cc);
 
-size_t roseSize(const RoseEngine *t);
-
 /* used by heuristics to determine the small write engine. High numbers are
  * intended to indicate a lightweight rose. */
 u32 roseQuality(const RoseEngine *t);
diff --git a/src/rose/rose_build_bytecode.cpp b/src/rose/rose_build_bytecode.cpp
index 98e1ef70..dad00cd6 100644
--- a/src/rose/rose_build_bytecode.cpp
+++ b/src/rose/rose_build_bytecode.cpp
@@ -5603,7 +5603,7 @@ bytecode_ptr<RoseEngine> addSmallWriteEngine(const RoseBuildImpl &build,
         return rose;
     }
 
-    const size_t mainSize = roseSize(rose.get());
+    const size_t mainSize = rose.size();
     const size_t smallWriteSize = smwr_engine.size();
     DEBUG_PRINTF("adding smwr engine, size=%zu\n", smallWriteSize);
 
diff --git a/src/rose/rose_build_misc.cpp b/src/rose/rose_build_misc.cpp
index ef650714..1e353a58 100644
--- a/src/rose/rose_build_misc.cpp
+++ b/src/rose/rose_build_misc.cpp
@@ -239,11 +239,6 @@ unique_ptr<RoseBuild> makeRoseBuilder(ReportManager &rm,
     return ue2::make_unique<RoseBuildImpl>(rm, ssm, smwr, cc, boundary);
 }
 
-size_t roseSize(const RoseEngine *t) {
-    assert(t);
-    return t->size;
-}
-
 bool roseIsPureLiteral(const RoseEngine *t) {
     return t->runtimeImpl == ROSE_RUNTIME_PURE_LITERAL;
 }