diff --git a/htdocs/install/etape0.php b/htdocs/install/etape0.php
index ebadf70c2115f5ced1502d8e6ac7bbf72aeeebf8..3c1a878fe77ff88bfc695b5154b1e18bef210f50 100644
--- a/htdocs/install/etape0.php
+++ b/htdocs/install/etape0.php
@@ -78,15 +78,19 @@ if (isset($_POST["db_create_user"]) && $_POST["db_create_user"] == "on")
 	if ($_POST["db_type"] == 'mysql' ||$_POST["db_type"] == 'mysqli')
 	{
 		$databasefortest='mysql';
-	}elseif ($_POST["db_type"] == 'pgsql')
+	}
+	elseif ($_POST["db_type"] == 'pgsql')
 	{
 		$databasefortest='postgres';
 	}
-	else{
+	else
+	{
 		$databasefortest='mssql';
 	}
 	$db = new DoliDb($_POST["db_type"],$_POST["db_host"],$userroot,$passroot,$databasefortest);
-}else{	
+}
+else
+{	
 	$db = new DoliDb($_POST["db_type"],$_POST["db_host"],$_POST["db_user"],$_POST["db_pass"],$_POST["db_name"]);
 }
 if ($db->error)
diff --git a/htdocs/install/etape1.php b/htdocs/install/etape1.php
index e65920fe24f8442df4241d9bfb7b4c60144d8fbc..4f333852b31402dfc15944461d96f2fa4d48d785 100644
--- a/htdocs/install/etape1.php
+++ b/htdocs/install/etape1.php
@@ -148,8 +148,15 @@ if ($_POST["action"] == "set")
 			fputs($fp,"\n");
 
 			/* Authentication */
-                        fputs($fp, '$dolibarr_main_authentication="dolibarr";');
-                        fputs($fp,"\n");
+      if ($_POST["db_type"] == 'mssql')
+      {
+      	fputs($fp, '$dolibarr_main_authentication="dolibarr_mdb2";');
+      }
+      else
+      {
+      	fputs($fp, '$dolibarr_main_authentication="dolibarr";');
+      }
+      fputs($fp,"\n");
 
 			/* Preparation integration SMARTY */
 			fputs($fp, '$dolibarr_smarty_libs_dir="";');