diff --git a/pkgs/development/libraries/libappindicator/default.nix b/pkgs/development/libraries/libappindicator/default.nix
index e9fccaf28abf..d09684a04438 100644
--- a/pkgs/development/libraries/libappindicator/default.nix
+++ b/pkgs/development/libraries/libappindicator/default.nix
@@ -19,6 +19,8 @@ stdenv.mkDerivation rec {
   versionMajor = "12.10";
   versionMinor = "0";
 
+  outputs = [ "out" "dev" ];
+
   src = fetchurl {
     url = "${meta.homepage}/${versionMajor}/${version}/+download/libappindicator-${version}.tar.gz";
     sha256 = "17xlqd60v0zllrxp8bgq3k5a1jkj0svkqn8rzllcyjh8k0gpr46m";