diff --git a/pkgs/by-name/po/postman/linux.nix b/pkgs/by-name/po/postman/linux.nix
index 876a6a55f207..196ae0419a16 100644
--- a/pkgs/by-name/po/postman/linux.nix
+++ b/pkgs/by-name/po/postman/linux.nix
@@ -76,6 +76,9 @@ stdenv.mkDerivation {
       desktopName = "Postman";
       genericName = "Postman";
       categories = [ "Development" ];
+      mimeTypes = [ "x-scheme-handler/postman" ];
+      startupNotify = true;
+      startupWMClass = "postman";
     })
   ];