diff --git a/librb/src/rawbuf.c b/librb/src/rawbuf.c
index 4e83270b..7de82bb9 100644
--- a/librb/src/rawbuf.c
+++ b/librb/src/rawbuf.c
@@ -269,8 +269,8 @@ rb_rawbuf_get(rawbuf_head_t * rb, void *data, int len)
 int
 rb_rawbuf_length(rawbuf_head_t * rb)
 {
-	if(rb_dlink_list_length(&rb->list) == 0 && rb->len != 0)
-		lrb_assert(1 == 0);
+	if (rb_dlink_list_length(&rb->list) == 0 && lrb_assert(rb->len == 0))
+		rb->len = 0;
 	return rb->len;
 }