1 files changed, 8 insertions, 9 deletions
diff --git a/pkgs/data/fonts/kawkab-mono/default.nix b/pkgs/data/fonts/kawkab-mono/default.nix
index 1e07123badc..2dbe43aa6ae 100644
--- a/pkgs/data/fonts/kawkab-mono/default.nix
+++ b/pkgs/data/fonts/kawkab-mono/default.nix
@@ -1,15 +1,11 @@
+# when changing this expression convert it from 'fetchzip' to 'stdenvNoCC.mkDerivation'
 { lib, fetchzip }:
 
-fetchzip {
+(fetchzip {
   name = "kawkab-mono-20151015";
 
   url = "http://makkuk.com/kawkab-mono/downloads/kawkab-mono-0.1.zip";
 
-  postFetch = ''
-    mkdir -p $out/share/fonts
-    unzip -j $downloadedFile \*.ttf -d $out/share/fonts/truetype
-  '';
-
   sha256 = "1vfrb7xs817najplncg7zl9j5yxj8qnwb7aqm2v9p9xwafa4d2yd";
 
   meta = {
@@ -17,6 +13,9 @@ fetchzip {
     homepage = "https://makkuk.com/kawkab-mono/";
     license = lib.licenses.ofl;
   };
-}
-
-
+}).overrideAttrs (_: {
+  postFetch = ''
+    mkdir -p $out/share/fonts
+    unzip -j $downloadedFile \*.ttf -d $out/share/fonts/truetype
+  '';
+})