diff --git a/pkgs/applications/version-management/fossil/default.nix b/pkgs/applications/version-management/fossil/default.nix
index 14a492f6cc2..69c763acd83 100644
--- a/pkgs/applications/version-management/fossil/default.nix
+++ b/pkgs/applications/version-management/fossil/default.nix
@@ -37,7 +37,7 @@ stdenv.mkDerivation rec {
 
   crossAttrs = {
     doCheck = false;
-    makeFlagsArray = [ "TCC=${stdenv.cross.config}-gcc" ];
+    makeFlags = [ "TCC=$CC" ];
   };
 
   meta = {