diff --git a/plugins/modules/docker_swarm_service.py b/plugins/modules/docker_swarm_service.py
index 526cad00..e303b53f 100644
--- a/plugins/modules/docker_swarm_service.py
+++ b/plugins/modules/docker_swarm_service.py
@@ -2761,7 +2761,7 @@ def main():
         mode=dict(
             docker_py_version='6.0.0',
             docker_api_version='1.41',
-            detect_usage=lambda c: c.module.get('mode') == 'replicated-job',
+            detect_usage=lambda c: c.module.params.get('mode') == 'replicated-job',
             usage_msg='set mode'
         ),
     )