diff --git a/pkgs/development/libraries/qt-5/5.15/default.nix b/pkgs/development/libraries/qt-5/5.15/default.nix
index 1b52f79c33cd7..e4b6e16d868ea 100644
--- a/pkgs/development/libraries/qt-5/5.15/default.nix
+++ b/pkgs/development/libraries/qt-5/5.15/default.nix
@@ -236,9 +236,6 @@ let
         propagatedBuildInputs = [ self.qtbase.dev buildPackages.makeBinaryWrapper ]
           ++ lib.optional stdenv.isLinux self.qtwayland.dev;
       } ../hooks/wrap-qt-apps-hook.sh;
-    } // lib.optionalAttrs config.allowAliases {
-      # remove before 23.11
-      overrideScope' = lib.warn "qt5 now uses makeScopeWithSplicing which does not have \"overrideScope'\", use \"overrideScope\"." self.overrideScope;
     };
 
 in makeScopeWithSplicing (generateSplicesForMkScope "qt5") (_: {}) (_: {}) addPackages