diff --git a/ConflictSet.cpp b/ConflictSet.cpp
index 16b3000..555e65e 100644
--- a/ConflictSet.cpp
+++ b/ConflictSet.cpp
@@ -1676,7 +1676,7 @@ int firstNeqStride(const uint8_t *ap, const uint8_t *bp) {
 // This gets covered in local development
 // GCOVR_EXCL_START
 #if defined(HAS_AVX) && !defined(__SANITIZE_THREAD__)
-__attribute__((target("avx512bw"))) int
+__attribute__((target("avx512f,avx512bw"))) int
 longestCommonPrefix(const uint8_t *ap, const uint8_t *bp, int cl) {
   int i = 0;
   int end = cl & ~63;