diff --git a/library/cloud/cloudformation b/library/cloud/cloudformation
index 822bd6e2503..02132f56325 100644
--- a/library/cloud/cloudformation
+++ b/library/cloud/cloudformation
@@ -196,7 +196,7 @@ def main():
             template_parameters=dict(required=False, type='dict', default={}),
             state=dict(default='present', choices=['present', 'absent']),
             template=dict(default=None, required=True),
-            disable_rollback=dict(default=False),
+            disable_rollback=dict(default=False, type='bool'),
             tags=dict(default=None)
         )
     )