diff -r b9abbfd76550 -r 2b9cad31c7c1 core/UserMessages.cpp
--- a/core/UserMessages.cpp	Tue Mar 19 11:36:04 2013 -0400
+++ b/core/UserMessages.cpp	Tue Mar 19 11:46:02 2013 -0400
@@ -446,7 +446,7 @@
 }
 
 #ifdef USE_PROTOBUF_USERMESSAGES
-const protobuf::Message *GetMessagePrototype(int msg_type)
+const protobuf::Message *UserMessages::GetMessagePrototype(int msg_type)
 {
 #if SOURCE_ENGINE == SE_DOTA
 	return g_DotaUsermessageHelpers.GetPrototype(msg_type);