diff --git a/pkgs/applications/misc/pokemon-colorscripts-mac/default.nix b/pkgs/applications/misc/pokemon-colorscripts-mac/default.nix
index c795e7f76345..62c6ed0f4a42 100644
--- a/pkgs/applications/misc/pokemon-colorscripts-mac/default.nix
+++ b/pkgs/applications/misc/pokemon-colorscripts-mac/default.nix
@@ -6,7 +6,7 @@
 
 stdenv.mkDerivation rec {
   pname = "pokemon-colorscripts-mac";
-  version = "stable=2021-08-10";
+  version = "stable-2021-08-10";
 
   src = fetchFromGitHub {
     owner = "nuke-dash";