diff --git a/lib/ansible/modules/web_infrastructure/ansible_tower/tower_inventory_source.py b/lib/ansible/modules/web_infrastructure/ansible_tower/tower_inventory_source.py
index 46133fe9d9..b8f8098fcb 100644
--- a/lib/ansible/modules/web_infrastructure/ansible_tower/tower_inventory_source.py
+++ b/lib/ansible/modules/web_infrastructure/ansible_tower/tower_inventory_source.py
@@ -309,7 +309,7 @@ def main():
                         'instance_filters', 'group_by', 'overwrite',
                         'overwrite_vars', 'update_on_launch',
                         'update_cache_timeout'):
-                if module.params.get(key):
+                if module.params.get(key) is not None:
                     params[key] = module.params.get(key)
 
             if state == 'present':