diff --git a/src/core/ngx_cycle.c b/src/core/ngx_cycle.c
index f931ec5..fbfc9c6 100644
--- a/src/core/ngx_cycle.c
+++ b/src/core/ngx_cycle.c
@@ -653,7 +653,8 @@
 
     ls = old_cycle->listening.elts;
     for (i = 0; i < old_cycle->listening.nelts; i++) {
-        if (ls[i].remain) {
+
+        if (ls[i].remain || ls[i].fd == -1) {
             continue;
         }