diff --git a/pkgs/development/libraries/libdecor/default.nix b/pkgs/development/libraries/libdecor/default.nix
index 34b4e021b0f1..64fc11f500f0 100644
--- a/pkgs/development/libraries/libdecor/default.nix
+++ b/pkgs/development/libraries/libdecor/default.nix
@@ -26,6 +26,8 @@ stdenv.mkDerivation rec {
     sha256 = "0qdg3r7k086wzszr969s0ljlqdvfqm31zpl8p5h397bw076zr6p2";
   };
 
+  outputs = [ "out" "dev" ];
+
   strictDeps = true;
 
   nativeBuildInputs = [