diff --git a/app/bot.php b/app/bot.php
index a5318f1..f2c8117 100644
--- a/app/bot.php
+++ b/app/bot.php
@@ -1402,7 +1402,7 @@ class Bot
             $conf = $this->getPacConf();
             $conf['domain'] = idn_to_ascii($domain);
             $nginx = file_get_contents('/config/nginx.conf');
-            $t = preg_replace('/server_name([^\n]+)?/', "server_name {$conf['domain']};", $nginx);
+            $t = preg_replace('/server_name ([^\n]+)?/', "server_name {$conf['domain']};", $nginx);
             preg_match_all('~#-domain.+?#-domain~s', $t, $m);
             foreach ($m[0] as $k => $v) {
                 $t = preg_replace('~#-domain.+?#-domain~s', $this->uncomment($v, 'domain'), $t, 1);
diff --git a/config/nginx.conf b/config/nginx.conf
index 5a0b845..bf8e1af 100644
--- a/config/nginx.conf
+++ b/config/nginx.conf
@@ -9,6 +9,7 @@ events {
 }
 
 http {
+  server_names_hash_bucket_size 64;
   include       include.conf;
   include       /etc/nginx/mime.types;
   default_type  application/octet-stream;
diff --git a/config/nginx_default.conf b/config/nginx_default.conf
index 5a0b845..bf8e1af 100644
--- a/config/nginx_default.conf
+++ b/config/nginx_default.conf
@@ -9,6 +9,7 @@ events {
 }
 
 http {
+  server_names_hash_bucket_size 64;
   include       include.conf;
   include       /etc/nginx/mime.types;
   default_type  application/octet-stream;