diff --git a/stack_orchestrator/build/fetch_containers.py b/stack_orchestrator/build/fetch_containers.py
index 03a46dbb..20119d17 100644
--- a/stack_orchestrator/build/fetch_containers.py
+++ b/stack_orchestrator/build/fetch_containers.py
@@ -89,8 +89,8 @@ def _add_local_tag(remote_tag: str, registry: str, local_tag: str):
 @click.option('--exclude', help="don\'t fetch these containers")
 @click.option("--force-local-overwrite", is_flag=True, default=False, help="Overwrite a locally built image, if present")
 @click.option("--image-registry", required=True, help="Specify the image registry to fetch from")
-@click.option("--registry_username", required=True, help="Specify the image registry username")
-@click.option("--registry_token", required=True, help="Specify the image registry access token")
+@click.option("--registry-username", required=True, help="Specify the image registry username")
+@click.option("--registry-token", required=True, help="Specify the image registry access token")
 @click.pass_context
 def command(ctx, include, exclude, force_local_overwrite, image_registry, registry_username, registry_token):
     '''EXPERIMENTAL: fetch the images for a stack from remote registry'''