diff --git a/pkgs/development/libraries/libayatana-appindicator/default.nix b/pkgs/development/libraries/libayatana-appindicator/default.nix
index 186e8c42f4ba..c7d48468336c 100644
--- a/pkgs/development/libraries/libayatana-appindicator/default.nix
+++ b/pkgs/development/libraries/libayatana-appindicator/default.nix
@@ -11,6 +11,8 @@ stdenv.mkDerivation rec {
   pname = "libayatana-appindicator-gtk${gtkVersion}";
   version = "0.5.5";
 
+  outputs = [ "out" "dev" ];
+
   src = fetchFromGitHub {
     owner = "AyatanaIndicators";
     repo = "libayatana-appindicator";