diff --git a/pkgs/desktops/xfce/core/xfce4-panel.nix b/pkgs/desktops/xfce/core/xfce4-panel.nix
index e654b2f7dfbe..2c64754e96a1 100644
--- a/pkgs/desktops/xfce/core/xfce4-panel.nix
+++ b/pkgs/desktops/xfce/core/xfce4-panel.nix
@@ -1,5 +1,6 @@
 { stdenv, fetchurl, pkgconfig, intltool, gtk, libxfce4util, libxfce4ui
-, libwnck, exo, garcon, xfconf, libstartup_notification }:
+, libwnck, exo, garcon, xfconf, libstartup_notification
+, makeWrapper, gst_plugins_base }:
 
 stdenv.mkDerivation rec {
   p_name  = "xfce4-panel";
@@ -18,9 +19,15 @@ stdenv.mkDerivation rec {
   buildInputs =
     [ pkgconfig intltool gtk libxfce4util exo libwnck
       garcon xfconf libstartup_notification
+      makeWrapper gst_plugins_base
     ];
   propagatedBuildInputs = [ libxfce4ui ];
 
+  postInstall = ''
+    wrapProgram "$out/bin/xfce4-panel" \
+      --prefix GST_PLUGIN_SYSTEM_PATH : "$GST_PLUGIN_SYSTEM_PATH"
+  '';
+
   preFixup = "rm $out/share/icons/hicolor/icon-theme.cache";
 
   enableParallelBuilding = true;