diff --git a/src/wqueue.c b/src/wqueue.c
index 4401440..13c3067 100644
--- a/src/wqueue.c
+++ b/src/wqueue.c
@@ -76,7 +76,7 @@ void uc_wqueue_init(struct UCWQueue *wqueue, struct IOMux *mux)
 int uc_wqueue_clear(struct UCWQueue *wqueue)
 {
     struct MBuf *buf;
-    int rc;
+    int rc = 0;
 
     while ((buf = uc_mbuf_dequeue(&wqueue->queue)) != NULL) {
         uc_mbuf_free(buf);