diff --git a/scoring/run_workloads.py b/scoring/run_workloads.py
index f99b81106..1c33079d3 100644
--- a/scoring/run_workloads.py
+++ b/scoring/run_workloads.py
@@ -128,7 +128,10 @@ def main(_):
   if FLAGS.hparam_end_index:
     hparam_end_index_flag = f'--hparam_end_index {FLAGS.hparam_end_index} '
   study_start_index = FLAGS.study_start_index if FLAGS.study_start_index else 0
-  study_end_index = FLAGS.study_end_index if FLAGS.study_end_index else num_studies - 1
+  if FLAGS.study_end_index is not None:
+    study_end_index = FLAGS.study_end_index
+  else:
+    study_end_index = num_studies - 1
   submission_id = FLAGS.submission_id
   rng_seed = FLAGS.seed
 
@@ -232,4 +235,4 @@ def main(_):
 
 if __name__ == '__main__':
   flags.mark_flag_as_required('workload_metadata_path')
-  app.run(main)
+  app.run(main)
\ No newline at end of file