diff --git a/util/migrate/backfill_content_checksums.py b/util/migrate/backfill_content_checksums.py
index c03bb13b6..3530498c1 100644
--- a/util/migrate/backfill_content_checksums.py
+++ b/util/migrate/backfill_content_checksums.py
@@ -54,7 +54,6 @@ class ImageStoragePlacement(BaseModel):
   location = ForeignKeyField(ImageStorageLocation)
 
 
-
 def _get_image_storage_locations(storage_id):
   placements_query = (ImageStoragePlacement
                       .select(ImageStoragePlacement, ImageStorageLocation)
@@ -91,7 +90,7 @@ def backfill_content_checksums():
     with CloseForLongOperation(app.config):
       try:
         # Compute the checksum
-        layer_path = storage.image_layer_path(candidate_storage.uuid)
+        layer_path = storage.v1_image_layer_path(candidate_storage.uuid)
         with storage.stream_read_file(locations, layer_path) as layer_data_handle:
           checksum = 'sha256:{0}'.format(checksums.sha256_file(layer_data_handle))
       except Exception as exc: