diff --git a/OS/Ubuntu/18.04/pool/www56.conf b/OS/Ubuntu/18.04/pool/www56.conf
index 8302beb..b2f3684 100644
--- a/OS/Ubuntu/18.04/pool/www56.conf
+++ b/OS/Ubuntu/18.04/pool/www56.conf
@@ -3,7 +3,7 @@
 user = nginx
 group = nginx
 listen = 127.0.0.1:9000
-listen.backlog = 511
+listen.backlog = 65535
 
 listen.owner = nginx
 listen.group = nginx