diff --git a/pkgs/development/libraries/kde-frameworks-5.7/default.nix b/pkgs/development/libraries/kde-frameworks-5.7/default.nix
index 605ed4a0567e..c7fdbc060ec0 100644
--- a/pkgs/development/libraries/kde-frameworks-5.7/default.nix
+++ b/pkgs/development/libraries/kde-frameworks-5.7/default.nix
@@ -19,7 +19,7 @@ with stdenv.lib; with autonix;
 let
 
   mkDerivation = drv:
-    let inherit (builtins.parseDrvName drv.version) version; in
+    let inherit (builtins.parseDrvName drv.name) version; in
     stdenv.mkDerivation
       (drv // {
         setupHook = ./setup-hook.sh;
@@ -112,7 +112,7 @@ let
             ./extra-cmake-modules/0001-extra-cmake-modules-paths.patch
           ];
         meta =
-          let inherit (parseDrvName super.extra-cmake-modules.name) version; in
+          let inherit (builtins.parseDrvName super.extra-cmake-modules.name) version; in
           {
             license = with stdenv.lib.licenses; [ bsd2 ];
             platforms = stdenv.lib.platforms.linux;