diff --git a/python/mass_electrophysiology_chunking.py b/python/mass_electrophysiology_chunking.py
index f743c8333..baee595b6 100755
--- a/python/mass_electrophysiology_chunking.py
+++ b/python/mass_electrophysiology_chunking.py
@@ -69,7 +69,7 @@ def main():
     if (smallest_id == largest_id):
         make_chunks(smallest_id, config_file, verbose)
     else:
-        for file_id in range(smallest_id, largest_id):
+        for file_id in range(smallest_id, largest_id + 1):
             make_chunks(file_id, config_file, verbose)