diff --git a/src/event/ngx_event_close.c b/src/event/ngx_event_close.c
index c829c71..8c8fd1b 100644
--- a/src/event/ngx_event_close.c
+++ b/src/event/ngx_event_close.c
@@ -27,7 +27,7 @@
     ngx_del_event(c->write, NGX_WRITE_EVENT, NGX_CLOSE_EVENT);
 
     if ((rc = ngx_close_socket(c->fd)) == -1)
-        ngx_log_error(NGX_LOG_ERR, c->log, ngx_socket_errno,
+        ngx_log_error(NGX_LOG_ALERT, c->log, ngx_socket_errno,
                       "ngx_event_close: close failed");
 
     c->fd = -1;