diff --git a/evoadmin/htdocs/evolibs/Auth.php b/evoadmin/htdocs/evolibs/Auth.php
index 7cd8ddb..b95ff02 100644
--- a/evoadmin/htdocs/evolibs/Auth.php
+++ b/evoadmin/htdocs/evolibs/Auth.php
@@ -24,7 +24,7 @@ class Auth
 
 	function badname($login)
 	{
-		return (!preg_match('`^([a-z0-9][a-z0-9\-\.\_]{1,28}[a-z0-9])$`',$login));
+		return (!preg_match('/^([a-z0-9][a-z0-9\-\.\_]{1,28}[a-z0-9])$/',$login));
 	}
 
 	/**
@@ -37,7 +37,7 @@ class Auth
 	{
 		return ( (strlen($pass) > 42) ||
 				(strlen($pass) < 5) ||
-				(!preg_match('^([[:graph:]]*)$',$pass)) );
+				(!preg_match('/^([[:graph:]]*)$/',$pass)) );
 
 	}
 
@@ -47,7 +47,7 @@ class Auth
 
 	function badfqdn($domain)
 	{
-		return (!preg_match('^([[:alnum:]\.\-]{2,70}.[[:alpha:]]{2,5})$',$domain));
+		return (!preg_match('/^([[:alnum:]\.\-]{2,70}.[[:alpha:]]{2,5})$/',$domain));
 	}
 
 }
diff --git a/evoadmin/htdocs/inc/functions.php b/evoadmin/htdocs/inc/functions.php
index 7263e9d..0e554e1 100755
--- a/evoadmin/htdocs/inc/functions.php
+++ b/evoadmin/htdocs/inc/functions.php
@@ -236,7 +236,7 @@ function getsambagroups($type) {
  */
 function badname($login)
 {
-    return (!preg_match('`^([a-z0-9][a-z0-9\-\.\_]{0,28}[a-z0-9])$`',$login));
+    return (!preg_match('/^([a-z0-9][a-z0-9\-\.\_]{0,28}[a-z0-9])$/',$login));
 }
 
 /**
@@ -244,7 +244,7 @@ function badname($login)
  */
 function adddomain(&$item,$key)
 {
-    if (preg_match('`@`',$item)) {
+    if (preg_match('/@/',$item)) {
         print "<p class='error'>Ne pas inclure de @ dans les mails acceptes&nbsp;!</p>";
         exit(1);
     }