diff --git a/pkgs/by-name/wq/wqy_microhei/package.nix b/pkgs/by-name/wq/wqy_microhei/package.nix
index 388fcc0fc517..5e4b18a16d5f 100644
--- a/pkgs/by-name/wq/wqy_microhei/package.nix
+++ b/pkgs/by-name/wq/wqy_microhei/package.nix
@@ -5,12 +5,12 @@
   installFonts,
 }:
 
-stdenvNoCC.mkDerivation rec {
+stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "wqy-microhei";
   version = "0.2.0";
 
   src = fetchurl {
-    url = "mirror://sourceforge/wqy/wqy-microhei-${version}-beta.tar.gz";
+    url = "mirror://sourceforge/wqy/wqy-microhei-${finalAttrs.version}-beta.tar.gz";
     hash = "sha256-KAKsgCOqNqZupudEWFTjoHjTd///QhaTQb0jeHH3IT4=";
   };
 
@@ -23,4 +23,4 @@ stdenvNoCC.mkDerivation rec {
     maintainers = [ lib.maintainers.pkmx ];
     platforms = lib.platforms.all;
   };
-}
+})