diff --git a/lib/Froxlor/Cron/Http/Apache.php b/lib/Froxlor/Cron/Http/Apache.php
index 1f37b78f..f580fc9f 100644
--- a/lib/Froxlor/Cron/Http/Apache.php
+++ b/lib/Froxlor/Cron/Http/Apache.php
@@ -565,7 +565,7 @@ class Apache extends HttpConfigBase
 	 *
 	 * @return string
 	 */
-	protected function composePhpOptions($domain, $ssl_vhost = false)
+	protected function composePhpOptions(&$domain, $ssl_vhost = false)
 	{
 		$php_options_text = '';
 
diff --git a/lib/Froxlor/Cron/Http/Lighttpd.php b/lib/Froxlor/Cron/Http/Lighttpd.php
index fda3b6bc..5d9f6b5e 100644
--- a/lib/Froxlor/Cron/Http/Lighttpd.php
+++ b/lib/Froxlor/Cron/Http/Lighttpd.php
@@ -364,7 +364,7 @@ class Lighttpd extends HttpConfigBase
 		return;
 	}
 
-	protected function composePhpOptions($domain)
+	protected function composePhpOptions(&$domain)
 	{
 		return;
 	}
diff --git a/lib/Froxlor/Cron/Http/Nginx.php b/lib/Froxlor/Cron/Http/Nginx.php
index 393f3cf4..8d51c0b6 100644
--- a/lib/Froxlor/Cron/Http/Nginx.php
+++ b/lib/Froxlor/Cron/Http/Nginx.php
@@ -970,7 +970,7 @@ class Nginx extends HttpConfigBase
 		return $returnval;
 	}
 
-	protected function composePhpOptions($domain, $ssl_vhost = false)
+	protected function composePhpOptions(&$domain, $ssl_vhost = false)
 	{
 		$phpopts = '';
 		if ($domain['phpenabled_customer'] == 1 && $domain['phpenabled_vhost'] == '1') {