1 files changed, 1 insertions, 1 deletions
diff --git a/src/google/protobuf/extension_set.h b/src/google/protobuf/extension_set.h
index a1535baa..04d0e62c 100644
--- a/src/google/protobuf/extension_set.h
+++ b/src/google/protobuf/extension_set.h
@@ -134,7 +134,7 @@ class LIBPROTOBUF_EXPORT GeneratedExtensionFinder : public ExtensionFinder {
   virtual ~GeneratedExtensionFinder() {}
 
   // Returns true and fills in *output if found, otherwise returns false.
-  virtual bool Find(int number, ExtensionInfo* output);
+  virtual bool Find(int number, ExtensionInfo* output) override;
 
  private:
   const MessageLite* containing_type_;