diff --git a/clang/lib/CodeGen/CodeGenAction.cpp b/clang/lib/CodeGen/CodeGenAction.cpp
index 795b3a0..1e17918 100644
--- a/clang/lib/CodeGen/CodeGenAction.cpp
+++ b/clang/lib/CodeGen/CodeGenAction.cpp
@@ -152,7 +152,7 @@
         LLVMIRGeneration.stopTimer();
     }
 
-    void HandleInterestingDecl(DeclGroupRef D) {
+    void HandleInterestingDecl(DeclGroupRef D) override {
       // Ignore interesting decls from the AST reader after IRGen is finished.
       if (!IRGenFinished)
         HandleTopLevelDecl(D);