diff --git a/zun_ui/api/client.py b/zun_ui/api/client.py
index 7c3d4da..737faa1 100644
--- a/zun_ui/api/client.py
+++ b/zun_ui/api/client.py
@@ -131,7 +131,7 @@ def container_update(request, id, **kwargs):
 
 def container_delete(request, id, force=False):
     # TODO(shu-mutou): force option should be provided by user.
-    return zunclient(request).containers.delete(id, force)
+    return zunclient(request).containers.delete(id, force=force)
 
 
 def container_list(request, limit=None, marker=None, sort_key=None,