diff --git a/lib/ansible/modules/service_facts.py b/lib/ansible/modules/service_facts.py
index cec49324d53..bc397ebe1fe 100644
--- a/lib/ansible/modules/service_facts.py
+++ b/lib/ansible/modules/service_facts.py
@@ -62,7 +62,8 @@ ansible_facts:
         state:
           description:
           - State of the service.
-          - Either C(failed), C(running), C(stopped), or C(unknown).
+          - 'This commonly includes (but is not limited to) the following: C(failed), C(running), C(stopped) or C(unknown).'
+          - Depending on the used init system additional states might be returned.
           returned: always
           type: str
           sample: running