Index: camel/providers/groupwise/camel-groupwise-folder.c
===================================================================
--- camel/providers/groupwise/camel-groupwise-folder.c.orig
+++ camel/providers/groupwise/camel-groupwise-folder.c
@@ -1351,7 +1351,7 @@ gw_update_cache (CamelFolder *folder, GL
 				str = g_string_append (str, " ");
 			}
 
-                        if (org->display_name[0] == '\0') { 
+                        if (org->display_name && org->display_name[0] == '\0') {
 
 				str = g_string_append (str, org->email);
 				str = g_string_append (str, " ");