--- a/master/slave.c	Fri Mar 19 13:27:08 2010 +0100
+++ b/master/slave.c	Thu Apr 29 14:05:15 2010 +0200
@@ -72,6 +72,7 @@
     slave->master = master;
     slave->ring_position = ring_position;
     slave->station_address = station_address;
+    slave->effective_alias = 0x0000;
 
     slave->config = NULL;
     slave->requested_state = EC_SLAVE_STATE_PREOP;