diff --git a/src/node_http_common.h b/src/node_http_common.h
index d43418ba6f217c..41b5f419d94338 100644
--- a/src/node_http_common.h
+++ b/src/node_http_common.h
@@ -494,7 +494,7 @@ class NgHeader : public MemoryRetainer {
   inline std::string value() const;
   inline size_t length() const;
 
-  void MemoryInfo(MemoryTracker* tracker) const {
+  void MemoryInfo(MemoryTracker* tracker) const override {
     tracker->TrackField("name", name_);
     tracker->TrackField("value", value_);
   }