diff --git a/htdocs/admin/security.php b/htdocs/admin/security.php
index a7707629cff..3a786f30a84 100644
--- a/htdocs/admin/security.php
+++ b/htdocs/admin/security.php
@@ -171,7 +171,7 @@ elseif ($action == 'disable_MAIN_SECURITY_DISABLEFORGETPASSLINK')
 if ($action == 'maj_pattern')
 {
     $pattern = GETPOST("pattern");
-    $explodePattern = explode(';',$pattern);
+    $explodePattern = explode(';', $pattern);
 
     $patternInError = false;
     if($explodePattern[0] < 1 || $explodePattern[4] < 1){