1 files changed, 2 insertions, 2 deletions
diff --git a/pkgs/applications/science/astronomy/gprojector/default.nix b/pkgs/applications/science/astronomy/gprojector/default.nix
index 3864058828f..26e8fe11a32 100644
--- a/pkgs/applications/science/astronomy/gprojector/default.nix
+++ b/pkgs/applications/science/astronomy/gprojector/default.nix
@@ -22,8 +22,8 @@ stdenvNoCC.mkDerivation rec {
     exec = "gprojector";
     desktopName = "G.Projector";
     comment = meta.description;
-    categories = "Science;";
-    extraEntries = "StartupWMClass = gov-nasa-giss-projector-GProjector";
+    categories = [ "Science" ];
+    startupWMClass = "gov-nasa-giss-projector-GProjector";
   }) ];
 
   buildInputs = [ jre ];