diff --git a/pkgs/desktops/gnome/default.nix b/pkgs/desktops/gnome/default.nix
index 73fa1c099c16..ce86bf7ed42c 100644
--- a/pkgs/desktops/gnome/default.nix
+++ b/pkgs/desktops/gnome/default.nix
@@ -162,7 +162,7 @@ rec {
   };
 
   gtkhtml = import ./gtkhtml.nix {
-    inherit fetchurl stdenv pkgconfig perl perlXMLParser libjpeg gettext intltool enchant;
+    inherit fetchurl stdenv pkgconfig perl perlXMLParser libjpeg gettext intltool enchant isocodes;
     inherit gtk atk gail libgnomeprint libgnomeprintui libgnomeui libglade gnomeicontheme;
     input = desktop.gtkhtml;
   };
diff --git a/pkgs/desktops/gnome/gtkhtml.nix b/pkgs/desktops/gnome/gtkhtml.nix
index 2a456763bf5e..c3b28f2765d9 100644
--- a/pkgs/desktops/gnome/gtkhtml.nix
+++ b/pkgs/desktops/gnome/gtkhtml.nix
@@ -1,6 +1,6 @@
 { input, stdenv, fetchurl, perl, perlXMLParser, pkgconfig, atk, gail, gtk
 , libgnomeprint, libgnomeprintui, libgnomeui, libglade, gnomeicontheme
-, libjpeg, gettext, intltool, enchant
+, libjpeg, gettext, intltool, enchant, isocodes
 }:
 
 # TODO build complains about missing libsoup and soup. Optional dependency?
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
     perl perlXMLParser pkgconfig libjpeg
     atk gail gtk
     libglade libgnomeprint libgnomeprintui libgnomeui
-    gnomeicontheme gettext intltool enchant   
+    gnomeicontheme gettext intltool enchant isocodes
   ];
 }