diff --git a/public_html/deployment/classes/project.class.php b/public_html/deployment/classes/project.class.php
index 2ab8c0a461acd983bd681c65b2d42193623e5ebb..1667747f3064686740c9ed2fc485b19f5fcc289a 100644
--- a/public_html/deployment/classes/project.class.php
+++ b/public_html/deployment/classes/project.class.php
@@ -2318,7 +2318,7 @@ class project extends base {
             $sBakFile = $this->_getConfigFile($sId) . ".ok";
             copy($sCfgFile, $sBakFile);
 
-            $bReturn = file_put_contents($sCfgFile, json_encode($aData));
+            $bReturn = file_put_contents($sCfgFile, json_encode($aData, JSON_PRETTY_PRINT));
             $this->_aPrjConfig = json_decode(file_get_contents($this->_getConfigFile($sId)), true);
         }
         // save in ldap