diff --git a/setup/applicationinstaller.class.inc.php b/setup/applicationinstaller.class.inc.php
index d34b07ce6..5535e1395 100644
--- a/setup/applicationinstaller.class.inc.php
+++ b/setup/applicationinstaller.class.inc.php
@@ -992,7 +992,7 @@ class ApplicationInstaller
 		$oConfig->WriteToFile($sConfigFile);
 			
 		// try to make the final config file read-only
-		@chmod($sConfigFile, 0444); // Read-only for owner and group, nothing for others
+		@chmod($sConfigFile, 0440); // Read-only for owner and group, nothing for others
 
 		// Ready to go !!
 		require_once(APPROOT.'core/dict.class.inc.php');
@@ -1016,4 +1016,4 @@ class SetupDBBackup extends DBBackup
 	{
 		SetupPage::log('Error - '.$sMsg);
 	}
-}
\ No newline at end of file
+}