diff --git a/pkgs/games/xconq/default.nix b/pkgs/games/xconq/default.nix
index b9266cb88af7..1af7f42beb1e 100644
--- a/pkgs/games/xconq/default.nix
+++ b/pkgs/games/xconq/default.nix
@@ -30,8 +30,8 @@ rec {
   inherit buildInputs;
 
   /* doConfigure should be removed if not needed */
-  phaseNames = ["addInputs" "doUnpack" "fixMakefiles" "fixCfiles" "doConfigure"
-    "doMakeInstall" "doWrap"];
+  phaseNames = ["addInputs" "doUnpack" "fixMakefiles" "fixCfiles" "fixTCLfiles" 
+    "doConfigure" "doMakeInstall" "doWrap"];
       
   doWrap = a.makeManyWrappers ''$out/bin/*'' ''--prefix TCLLIBPATH : "${tk}/lib"'';
 
@@ -46,6 +46,10 @@ rec {
     sed -re '/unitp = view_unit[(]uview[)]/aelse *unitp = NULL\;' -i tcltk/tkmap.c
   '' ["minInit" "doUnpack"];
 
+  fixTCLfiles = a.fullDepEntry ''
+    sed -re 's@MediumBlue@LightBlue@g' -i tcltk/tkconq.tcl
+  '' ["minInit" "doUnpack"];
+
   configureFlags = [
     "--enable-alternate-scoresdir=scores"
     "--with-tclconfig=${tcl}/lib"