diff --git a/libc/include/strings.h b/libc/include/strings.h
index e72798b..faa12a4 100644
--- a/libc/include/strings.h
+++ b/libc/include/strings.h
@@ -50,12 +50,12 @@
 int	 strcasecmp(const char *, const char *);
 int	 strncasecmp(const char *, const char *, size_t);
 
-#if defined(__BIONIC_FORTIFY)
+#if defined(__BIONIC_FORTIFY) && !defined(__clang__)
 __BIONIC_FORTIFY_INLINE
 void bzero (void *s, size_t n) {
     __builtin___memset_chk(s, '\0', n, __builtin_object_size (s, 0));
 }
-#endif /* defined(__BIONIC_FORTIFY) */
+#endif /* defined(__BIONIC_FORTIFY) && !defined(__clang__) */
 
 __END_DECLS