diff --git a/newsfragments/XXX.bugfix b/newsfragments/XXX.bugfix
new file mode 100644
index 000000000..53b8eafe7
--- /dev/null
+++ b/newsfragments/XXX.bugfix
@@ -0,0 +1 @@
+Don't set batch offset when creating image sequences.
diff --git a/src/dxtbx/imageset.py b/src/dxtbx/imageset.py
index 564ced681..f499d5c6e 100644
--- a/src/dxtbx/imageset.py
+++ b/src/dxtbx/imageset.py
@@ -570,9 +570,6 @@ def make_sequence(
 
         # Set the image range
         array_range = (min(indices) - 1, max(indices))
-        if scan is not None:
-            assert array_range == scan.get_array_range()
-            scan.set_batch_offset(array_range[0])
 
         # Get the format object and reader
         if format_class is None: