diff --git a/classes/display/JSONDisplayHandler.php b/classes/display/JSONDisplayHandler.php
index cdea8d937..71d6a2b26 100644
--- a/classes/display/JSONDisplayHandler.php
+++ b/classes/display/JSONDisplayHandler.php
@@ -7,6 +7,7 @@ class JSONDisplayHandler {
 		$variables['error'] = $oModule->getError();
 		$variables['message'] = $oModule->getMessage();
 		$json = preg_replace("(\r\n|\n)",'\n',json_encode2($variables));
+		$json = preg_replace("\t",'\t',$json);
 		return $json;
 	}
 }