diff --git a/boot/expo.c b/boot/expo.c
index 8ce645e..9c042f1 100644
--- a/boot/expo.c
+++ b/boot/expo.c
@@ -30,6 +30,7 @@
 	INIT_LIST_HEAD(&exp->scene_head);
 	INIT_LIST_HEAD(&exp->str_head);
 	exp->next_id = EXPOID_BASE_ID;
+	cli_ch_init(&exp->cch);
 
 	*expp = exp;