diff --git a/pkgs/applications/science/misc/golly/default.nix b/pkgs/applications/science/misc/golly/default.nix
index ac37655d53b..ee2e276c6ca 100644
--- a/pkgs/applications/science/misc/golly/default.nix
+++ b/pkgs/applications/science/misc/golly/default.nix
@@ -43,6 +43,7 @@ rec {
     ];
     platforms = with a.lib.platforms;
       linux;
+    license = "GPLv2";
   };
 }) x