diff --git a/indra/newview/fsfloaterwhitelisthelper.h b/indra/newview/fsfloaterwhitelisthelper.h
index 7d09e14dd2..6fe4f976e7 100644
--- a/indra/newview/fsfloaterwhitelisthelper.h
+++ b/indra/newview/fsfloaterwhitelisthelper.h
@@ -36,7 +36,7 @@ public:
     explicit FSFloaterWhiteListHelper(const LLSD& key);
     ~FSFloaterWhiteListHelper() final = default;
 
-    BOOL postBuild() final;
+    BOOL postBuild() override final;
 
 private:
     void populateWhitelistInfo();