Index: vapigen/valagidlparser.vala
===================================================================
--- vapigen/valagidlparser.vala	(revision 602)
+++ vapigen/valagidlparser.vala	(working copy)
@@ -148,11 +148,30 @@
 		} else if (ns.name == "GLib" && type_name.has_prefix ("G")) {
 			return type_name.offset (1);
 		} else  {
+ 
+                        var attributes = get_attributes (type_name);
+                        if (attributes != null) {
+                                foreach (string attr in attributes) {
+                                        var nv = attr.split ("=", 2);
+                                        if (nv[0] == "name") {
+                                                return eval(nv[1]);
+                                        }
+                                }
+                        }
+ 
+                        string best_match = null;
+
 			foreach (string name in ns.get_cprefixes ()) {
 				if (type_name.has_prefix (name)) {
-					return type_name.offset (name.len ());
+                                        if (best_match == null || name.len() > best_match.len())
+                                                best_match = name;
 				}
 			}
+ 
+                        if (best_match != null)
+                        {
+                                return type_name.offset (best_match.len ());;
+                        }
 		}
 
 		return type_name;