diff --git a/veejay-current/libOSC/OSC-receive.h b/veejay-current/libOSC/OSC-receive.h
index c3c0303e..a60e2a30 100644
--- a/veejay-current/libOSC/OSC-receive.h
+++ b/veejay-current/libOSC/OSC-receive.h
@@ -215,6 +215,8 @@ Boolean NetworkPacketWaiting(OSCPacketBuffer packet);
 
 void	GoMultiCast(const char *groupname);
 
+int		IsMultiCast( char *dst);
+
 /**************************************************
    How to use this stuff
  **************************************************/