diff --git a/third_party/zlib/BUILD.gn b/third_party/zlib/BUILD.gn
index 1a9cd3b..728a011 100644
--- ./third_party/zlib/BUILD.gn
+++ ./third_party/zlib/BUILD.gn
@@ -16,7 +16,7 @@ config("zlib_internal_config") {
 
 use_arm_neon_optimizations = false
 if (current_cpu == "arm" || current_cpu == "arm64") {
-  if (arm_use_neon) {
+  if (arm_use_neon && is_clang) {
     use_arm_neon_optimizations = true
   }
 }