diff --git a/pkgs/desktops/plasma-5.2/default.nix b/pkgs/desktops/plasma-5.2/default.nix
index 3b4aa652735..dfaafa06a77 100644
--- a/pkgs/desktops/plasma-5.2/default.nix
+++ b/pkgs/desktops/plasma-5.2/default.nix
@@ -132,6 +132,10 @@ let
       plasma-workspace = with pkgs; super.plasma-workspace // {
         buildInputs = with xlibs;
           super.plasma-workspace.buildInputs ++ [ libSM libXcursor pam ];
+        postPatch = ''
+          substituteInPlace startkde/kstartupconfig/kstartupconfig.cpp \
+            --replace kdostartupconfig5 $out/bin/kdostartupconfig5
+        '';
         postInstall = ''
           # We use a custom startkde script
           rm $out/bin/startkde