--- chan_sip.old	2009-09-10 18:17:08.000000000 -0400
+++ chan_sip.c	2009-09-10 18:21:25.000000000 -0400
@@ -3061,6 +3061,7 @@
 			ast_log(LOG_DEBUG, "Destroying active SIP dialog for registry %s@%s\n", reg->username, reg->hostname);
 		sip_destroy(reg->call);
 	}
+	AST_SCHED_DEL(sched, reg->pokeexpire);
 	AST_SCHED_DEL(sched, reg->expire);
 	AST_SCHED_DEL(sched, reg->timeout);
 	ast_string_field_free_memory(reg);