diff --git a/src/aliby/tile/tiler.py b/src/aliby/tile/tiler.py
index 74aae3e8ab2610bc7d6b61f925582e6197283ac7..a6ca276b97b7addb090e0b836c4a25c9e9c994ef 100644
--- a/src/aliby/tile/tiler.py
+++ b/src/aliby/tile/tiler.py
@@ -272,7 +272,7 @@ class Tiler(StepABC):
         }
 
         return cls(
-            imgdmy_obj,
+            imgdmy_obj.data,
             dummy_omero_metadata,
             TilerParameters.from_dict(parameters),
         )