diff --git a/lib/ansible/modules/extras/messaging/rabbitmq_binding.py b/lib/ansible/modules/extras/messaging/rabbitmq_binding.py
index f09b949b24..b0ae3a38bf 100644
--- a/lib/ansible/modules/extras/messaging/rabbitmq_binding.py
+++ b/lib/ansible/modules/extras/messaging/rabbitmq_binding.py
@@ -88,7 +88,8 @@ options:
     arguments:
         description:
             - extra arguments for exchange. If defined this argument is a key/value dictionary
-        required: false        
+        required: false
+        default: {}
 '''
 
 EXAMPLES = '''