diff -up gnome-session-2.23.2.2/gnome-session/session.c.legacy-crash gnome-session-2.23.2.2/gnome-session/session.c
--- gnome-session-2.23.2.2/gnome-session/session.c.legacy-crash	2008-05-15 19:46:02.000000000 -0400
+++ gnome-session-2.23.2.2/gnome-session/session.c	2008-05-15 19:47:48.000000000 -0400
@@ -152,8 +152,13 @@ out:
 static void
 append_app (GsmSession *session, GsmApp *app)
 {
-  const char *basename = gsm_app_get_basename (app);
-  GsmApp *dup = g_hash_table_lookup (session->apps_by_name, basename);
+  const char *basename;
+  GsmApp *dup = NULL;
+
+  basename = gsm_app_get_basename (app);
+
+  if (basename) 
+    dup = g_hash_table_lookup (session->apps_by_name, basename);
 
   if (dup)
     {
@@ -163,7 +168,8 @@ append_app (GsmSession *session, GsmApp 
     }
 
   session->apps = g_slist_append (session->apps, app);
-  g_hash_table_insert (session->apps_by_name, g_strdup (basename), app);
+  if (basename)
+    g_hash_table_insert (session->apps_by_name, g_strdup (basename), app);
 }
 
 static void