diff --git a/include/uv-private/ngx-queue.h b/include/uv-private/ngx-queue.h
index 7058ce40..6fd0071f 100644
--- a/include/uv-private/ngx-queue.h
+++ b/include/uv-private/ngx-queue.h
@@ -100,7 +100,9 @@ struct ngx_queue_s {
 
 
 #define ngx_queue_foreach(q, h)                                               \
-    for ((q) = ngx_queue_head(h); (q) != (h); (q) = ngx_queue_next(q))
+    for ((q) = ngx_queue_head(h);                                             \
+         (q) != ngx_queue_sentinel(h);                                        \
+         (q) = ngx_queue_next(q))
 
 
 #endif /* NGX_QUEUE_H_INCLUDED_ */