diff --git a/faiss/utils/utils.cpp b/faiss/utils/utils.cpp
index beae93ac16..fef8aa1c72 100644
--- a/faiss/utils/utils.cpp
+++ b/faiss/utils/utils.cpp
@@ -117,8 +117,9 @@ std::string get_compile_options() {
 
 #ifdef __AVX2__
     options += "AVX2 ";
-#elif __AVX512F__
+#ifdef __AVX512F__
     options += "AVX512 ";
+#endif
 #elif defined(__ARM_FEATURE_SVE)
     options += "SVE NEON ";
 #elif defined(__aarch64__)