diff --git a/pkgs/development/libraries/fontconfig/2.10.nix b/pkgs/development/libraries/fontconfig/2.10.nix
index 2951dbb44d4..fea9efde1cf 100644
--- a/pkgs/development/libraries/fontconfig/2.10.nix
+++ b/pkgs/development/libraries/fontconfig/2.10.nix
@@ -16,6 +16,8 @@ stdenv.mkDerivation rec {
       }
     ;
 
+  outputs = [ "dev" "lib" "bin" "out" ]; # $out contains all the config
+
   propagatedBuildInputs = [ freetype ];
   buildInputs = [ pkgconfig expat ];