diff --git a/pkgs/development/libraries/haskell/gtk/default.nix b/pkgs/development/libraries/haskell/gtk/default.nix
index 2f785a95382..9fd8cf6f303 100644
--- a/pkgs/development/libraries/haskell/gtk/default.nix
+++ b/pkgs/development/libraries/haskell/gtk/default.nix
@@ -1,6 +1,6 @@
 # This file was auto-generated by cabal2nix. Please do NOT edit manually!
 
-{ cabal, cairo, glib, gtk, gtk2hsBuildtools, libc, mtl, pango
+{ cabal, cairo, gio, glib, gtk, gtk2hsBuildtools, libc, mtl, pango
 , pkgconfig
 }:
 
@@ -8,7 +8,7 @@ cabal.mkDerivation (self: {
   pname = "gtk";
   version = "0.12.5.7";
   sha256 = "0hax4ixdz523753rc774c8g76bjlj56lsabyl5nwkpnppffpa73w";
-  buildDepends = [ cairo glib mtl pango ];
+  buildDepends = [ cairo gio glib mtl pango ];
   buildTools = [ gtk2hsBuildtools ];
   extraLibraries = [ libc pkgconfig ];
   pkgconfigDepends = [ glib gtk ];