diff -Naur asterisk-1.6.0.16-rc1.orig/main/pbx.c asterisk-1.6.0.16-rc1/main/pbx.c
--- asterisk-1.6.0.16-rc1.orig/main/pbx.c	2009-09-16 20:11:13.000000000 +0200
+++ asterisk-1.6.0.16-rc1/main/pbx.c	2009-10-06 10:50:31.628795783 +0200
@@ -3205,6 +3205,7 @@
 	char *cur, *rest;
 	struct ast_devstate_aggregate agg;
 
+	ast_devstate_aggregate_init(&agg);
 	if (!e)
 		return -1;