diff --git a/pkgs/applications/misc/yakuake/default.nix b/pkgs/applications/misc/yakuake/default.nix
index 676cfc12eb0..b53a79cca24 100644
--- a/pkgs/applications/misc/yakuake/default.nix
+++ b/pkgs/applications/misc/yakuake/default.nix
@@ -65,5 +65,6 @@ mkDerivation rec {
     homepage = https://yakuake.kde.org;
     description = "Quad-style terminal emulator for KDE";
     maintainers = with lib.maintainers; [ fridh ];
+    licenses = lib.licenses.gpl2;
   };
 }