diff --git a/indra/newview/llfloaterhowto.h b/indra/newview/llfloaterhowto.h
index c2703d815bb543740a5b82b43736926cf5c46ac5..d8da355600e16cb12388ac113f158e09dbf27e64 100644
--- a/indra/newview/llfloaterhowto.h
+++ b/indra/newview/llfloaterhowto.h
@@ -44,7 +44,7 @@ class LLFloaterHowTo :
 
     void onOpen(const LLSD& key) override;
 
-    virtual BOOL handleKeyHere(KEY key, MASK mask);
+    BOOL handleKeyHere(KEY key, MASK mask) override;
 
     static LLFloaterHowTo* getInstance();