diff --git a/linc_convert/modalities/df/multi_slice.py b/linc_convert/modalities/df/multi_slice.py
index 20af1ec..be4d072 100644
--- a/linc_convert/modalities/df/multi_slice.py
+++ b/linc_convert/modalities/df/multi_slice.py
@@ -229,7 +229,7 @@ def convert(
         multiscales[0]["axes"].insert(0, {"name": "c", "type": "channel"})
 
     for n in range(nblevel):
-		shape0 = omz['0'].shape[2:]
+        shape0 = omz['0'].shape[2:]
         shape = omz[str(n)].shape[2:]
         multiscales[0]["datasets"].append({})
         level = multiscales[0]["datasets"][-1]