diff --git a/src/module_wrap.cc b/src/module_wrap.cc
index 92b34f5a8b99c2..bb85e69b5fe3d4 100644
--- a/src/module_wrap.cc
+++ b/src/module_wrap.cc
@@ -128,7 +128,7 @@ v8::Maybe<bool> ModuleWrap::CheckUnsettledTopLevelAwait() {
   }
 
   if (env()->options()->warnings) {
-    for (auto pair : stalled) {
+    for (auto& pair : stalled) {
       Local<v8::Message> message = std::get<1>(pair);
 
       std::string reason = "Warning: Detected unsettled top-level await at ";