diff --git a/pkgs/development/libraries/webkit/default.nix b/pkgs/development/libraries/webkit/default.nix
index c8d0767320b..262b0c2e9ce 100644
--- a/pkgs/development/libraries/webkit/default.nix
+++ b/pkgs/development/libraries/webkit/default.nix
@@ -13,7 +13,7 @@ rec {
     gettext libjpeg libpng libtiff libxml2 libxslt pango
     sqlite icu gperf bison flex autoconf automake libtool 
     perl intltool pkgconfig libsoup gtkdoc libXt libproxy
-    enchant python ruby which
+    enchant python ruby which renderproto libXrender
     ];
 
   propagatedBuildInputs = [
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 03b9e1e294f..2a0abdc7a3b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3863,7 +3863,7 @@ let
     inherit (gst_all) gstreamer gstPluginsBase gstFfmpeg
       gstPluginsGood;
     flex = flex2535;
-    inherit (xlibs) libXt;
+    inherit (xlibs) libXt renderproto libXrender;
   }).deepOverride {libsoup = gnome28.libsoup_2_31;});
 
   wvstreams = callPackage ../development/libraries/wvstreams { };