diff --git a/undelete_for_hse.py b/undelete_for_hse.py
index 1a8c4f2..bf2dbe5 100644
--- a/undelete_for_hse.py
+++ b/undelete_for_hse.py
@@ -29,10 +29,10 @@ try:
     actualVersions = []
     deleteVersions = []
 
-	mark = None
-	index = 1
+    mark = None
+    index = 1
 	
-	while True:
+    while True:
 
 		listing = obsClient.listVersions(
 			bucket,