--- gdm-3.2.1.1/data/gdm-shell.session.in.wiget	2011-10-19 19:38:06.384218726 +0200
+++ gdm-3.2.1.1/data/gdm-shell.session.in	2011-10-19 19:38:45.769335146 +0200
@@ -1,5 +1,5 @@
 [GNOME Session]
 Name=Display Manager
 RequiredComponents=gnome-shell;gnome-settings-daemon;
-IsRunnableHelper=bash -c 'gnome-shell --help | grep -q gdm-mode && @libexecdir@/gnome-session-check-accelerated'
+IsRunnableHelper=sh -c 'gnome-shell --help | grep -q gdm-mode && @libexecdir@/gnome-session-check-accelerated'
 FallbackSession=gdm-fallback