diff --git a/lib/ansible/modules/monitoring/sensu_silence.py b/lib/ansible/modules/monitoring/sensu_silence.py
index 8719141bdf..2879b904cc 100644
--- a/lib/ansible/modules/monitoring/sensu_silence.py
+++ b/lib/ansible/modules/monitoring/sensu_silence.py
@@ -264,7 +264,7 @@ def main():
             check=dict(required=False),
             creator=dict(required=False),
             expire=dict(required=False),
-            expire_on_resolve=dict(type=bool, required=False),
+            expire_on_resolve=dict(type='bool', required=False),
             reason=dict(required=False),
             state=dict(default='present', choices=['present', 'absent']),
             subscription=dict(required=True),