diff --git a/pkgs/development/libraries/atkmm/default.nix b/pkgs/development/libraries/atkmm/default.nix
index a10d730d06e..e1cfb488be8 100644
--- a/pkgs/development/libraries/atkmm/default.nix
+++ b/pkgs/development/libraries/atkmm/default.nix
@@ -11,6 +11,8 @@ stdenv.mkDerivation rec {
     sha256 = "ff95385759e2af23828d4056356f25376cfabc41e690ac1df055371537e458bd";
   };
 
+  outputs = [ "out" "dev" ];
+
   propagatedBuildInputs = [ atk glibmm ];
 
   nativeBuildInputs = [ pkgconfig ];
diff --git a/pkgs/development/libraries/cairomm/default.nix b/pkgs/development/libraries/cairomm/default.nix
index fbf3cd57e3b..017516f6b49 100644
--- a/pkgs/development/libraries/cairomm/default.nix
+++ b/pkgs/development/libraries/cairomm/default.nix
@@ -11,6 +11,8 @@ stdenv.mkDerivation rec {
     sha256 = "a54ada8394a86182525c0762e6f50db6b9212a2109280d13ec6a0b29bfd1afe6";
   };
 
+  outputs = [ "out" "dev" ];
+
   nativeBuildInputs = [ pkgconfig ];
   propagatedBuildInputs = [ cairo libsigcxx ];
   buildInputs = [ fontconfig freetype ]
diff --git a/pkgs/development/libraries/gtkmm/2.x.nix b/pkgs/development/libraries/gtkmm/2.x.nix
index 119e3f77f67..1ec2a7cd6f0 100644
--- a/pkgs/development/libraries/gtkmm/2.x.nix
+++ b/pkgs/development/libraries/gtkmm/2.x.nix
@@ -9,6 +9,8 @@ stdenv.mkDerivation rec {
     sha256 = "0680a53b7bf90b4e4bf444d1d89e6df41c777e0bacc96e9c09fc4dd2f5fe6b72";
   };
 
+  outputs = [ "out" "dev" ];
+
   nativeBuildInputs = [pkgconfig];
 
   propagatedBuildInputs = [ glibmm gtk2 atkmm cairomm pangomm ];
diff --git a/pkgs/development/libraries/gtkmm/3.x.nix b/pkgs/development/libraries/gtkmm/3.x.nix
index 8b2383f33cc..49055f6b4a9 100644
--- a/pkgs/development/libraries/gtkmm/3.x.nix
+++ b/pkgs/development/libraries/gtkmm/3.x.nix
@@ -12,6 +12,8 @@ stdenv.mkDerivation rec {
     sha256 = "05da4d4b628fb20c8384630ddf478a3b5562952b2d6181fe28d58f6cbc0514f5";
   };
 
+  outputs = [ "out" "dev" ];
+
   nativeBuildInputs = [ pkgconfig ];
   buildInputs = [ epoxy ];
 
diff --git a/pkgs/development/libraries/pangomm/default.nix b/pkgs/development/libraries/pangomm/default.nix
index 6850c13b44e..b99498f2013 100644
--- a/pkgs/development/libraries/pangomm/default.nix
+++ b/pkgs/development/libraries/pangomm/default.nix
@@ -12,6 +12,8 @@ stdenv.mkDerivation rec {
     sha256 = "9762ee2a2d5781be6797448d4dd2383ce14907159b30bc12bf6b08e7227be3af";
   };
 
+  outputs = [ "out" "dev" ];
+
   nativeBuildInputs = [ pkgconfig ];
   propagatedBuildInputs = [ pango glibmm cairomm ];
 
diff --git a/pkgs/development/python-modules/pygobject/3.nix b/pkgs/development/python-modules/pygobject/3.nix
index dfddd7dddbd..33bb1d5a4ca 100644
--- a/pkgs/development/python-modules/pygobject/3.nix
+++ b/pkgs/development/python-modules/pygobject/3.nix
@@ -10,6 +10,8 @@ mkPythonDerivation rec {
     sha256 = "08b29cfb08efc80f7a8630a2734dec65a99c1b59f1e5771c671d2e4ed8a5cbe7";
   };
 
+  outputs = [ "out" "dev" ];
+
   buildInputs = [ pkgconfig glib gobjectIntrospection ]
                  ++ stdenv.lib.optionals stdenv.isDarwin [ which ncurses ];
   propagatedBuildInputs = [ pycairo cairo ];