diff --git a/stack/hlsconstructs/sentinel_step_function.py b/stack/hlsconstructs/sentinel_step_function.py
index f90fae2..6d97136 100644
--- a/stack/hlsconstructs/sentinel_step_function.py
+++ b/stack/hlsconstructs/sentinel_step_function.py
@@ -86,6 +86,7 @@ def __init__(
                             "Environment": [
                                 {"Name": "GRANULE_LIST", "Value.$": "$.granule"},
                                 {"Name": "OUTPUT_BUCKET", "Value": outputbucket},
+                                {"Name": "DEBUG_BUCKET", "Value": outputbucket},
                                 {"Name": "INPUT_BUCKET", "Value": inputbucket},
                                 {"Name": "LASRC_AUX_DIR", "Value": "/var/lasrc_aux"},
                                 {