diff --git a/src/util/bitutils.h b/src/util/bitutils.h
index c67d5a85..8e9aae9c 100644
--- a/src/util/bitutils.h
+++ b/src/util/bitutils.h
@@ -78,6 +78,7 @@
 #define rank_in_mask64_impl rank_in_mask64_impl_c
 #define pext32_impl pext32_impl_c
 #define pext64_impl pext64_impl_c
+#define pdep64_impl pdep64_impl_c
 #endif
 
 static really_inline
@@ -207,6 +208,11 @@ u64a pext64(u64a x, u64a mask) {
     return pext64_impl(x, mask);
 }
 
+static really_inline
+u64a pdep64(u64a x, u64a mask) {
+    return pdep64_impl(x, mask);
+}
+
 /* compilers don't reliably synthesize the 32-bit ANDN instruction here,
  * so we force its generation.
  */