--- a/master/datagram.c	Thu Apr 29 14:05:15 2010 +0200
+++ b/master/datagram.c	Thu Apr 29 16:33:32 2010 +0200
@@ -94,6 +94,7 @@
     datagram->data_origin = EC_ORIG_INTERNAL;
     datagram->mem_size = 0;
     datagram->data_size = 0;
+    datagram->domain = NULL;
     datagram->index = 0x00;
     datagram->working_counter = 0x0000;
     datagram->state = EC_DATAGRAM_INIT;