diff --git a/interface/web/sites/web_vhost_domain_edit.php b/interface/web/sites/web_vhost_domain_edit.php
index 8d43e21fad758459d3013ecb9e90b6005e010711..3d6ecc6fb8f94a4f45d32dc4f14137ceab40b471 100644
--- a/interface/web/sites/web_vhost_domain_edit.php
+++ b/interface/web/sites/web_vhost_domain_edit.php
@@ -1301,7 +1301,7 @@ class page_action extends tform_actions {
 					// value inside ''
 					if(preg_match('@^\s*;*\s*[a-zA-Z0-9._]*\s*=\s*\'.*\'\s*;*\s*$@', $custom_php_ini_settings_line)) continue;
 					// everything else
-					if(preg_match('@^\s*;*\s*[a-zA-Z0-9._]*\s*=\s*[-a-zA-Z0-9~&=_\@/,.#\s]*\s*;*\s*$@', $custom_php_ini_settings_line)) continue;
+					if(preg_match('@^\s*;*\s*[a-zA-Z0-9._]*\s*=\s*[-a-zA-Z0-9~&=_\@/,.#\s\|]*\s*;*\s*$@', $custom_php_ini_settings_line)) continue;
 					$custom_php_ini_settings_are_valid = false;
 					break;
 				}