--- a/master/slave.c	Tue Apr 20 11:21:43 2010 +0200
+++ b/master/slave.c	Fri Apr 23 16:42:27 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;