diff --git a/dss/stepfunctions/s3copyclient/implementation.py b/dss/stepfunctions/s3copyclient/implementation.py
index 9fa5da8aa9..897a9e2864 100644
--- a/dss/stepfunctions/s3copyclient/implementation.py
+++ b/dss/stepfunctions/s3copyclient/implementation.py
@@ -70,7 +70,12 @@ def setup_copy_task(event, lambda_context):
         event[_Key.UPLOAD_ID] = mpu['UploadId']
         event[Key.FINISHED] = False
     else:
-        s3_blobstore.copy(source_bucket, source_key, destination_bucket, destination_key)
+        s3_blobstore.copy(source_bucket,
+                          source_key,
+                          destination_bucket,
+                          destination_key,
+                          # TODO: change to "content_type" to be consistent with cloud_blobstore syntax?
+                          ContentType=blobinfo['ContentType'])
         event[_Key.UPLOAD_ID] = None
         event[Key.FINISHED] = True
     event[Key.CONTENT_TYPE] = blobinfo['ContentType']