diff --git a/xnat_ingest/cli/stage.py b/xnat_ingest/cli/stage.py
index ce11f53..08ee319 100644
--- a/xnat_ingest/cli/stage.py
+++ b/xnat_ingest/cli/stage.py
@@ -383,7 +383,7 @@ def do_stage() -> None:
                 else:
                     raise
 
-    if loop:
+    if loop is not None:
         while True:
             start_time = datetime.datetime.now()
             do_stage()
diff --git a/xnat_ingest/cli/upload.py b/xnat_ingest/cli/upload.py
index 7526b2f..12cbceb 100644
--- a/xnat_ingest/cli/upload.py
+++ b/xnat_ingest/cli/upload.py
@@ -416,7 +416,7 @@ def do_upload() -> None:
             else:
                 assert False
 
-    if loop:
+    if loop is not None:
         while True:
             start_time = datetime.datetime.now()
             do_upload()