diff --git a/htdocs/admin/security.php b/htdocs/admin/security.php
index c4c8026e076..a945f917ec1 100644
--- a/htdocs/admin/security.php
+++ b/htdocs/admin/security.php
@@ -174,7 +174,7 @@ if ($action == 'maj_pattern')
     $explodePattern = explode(';', $pattern);
 
     $patternInError = false;
-    if($explodePattern[0] < 1 || $explodePattern[4] < 1){
+    if($explodePattern[0] < 1 || $explodePattern[4] < 0){
         $patternInError = true;
     }