diff --git a/lib/ansible/modules/extras/messaging/rabbitmq_plugin.py b/lib/ansible/modules/extras/messaging/rabbitmq_plugin.py
index bc71bcec51c..8d3a9428016 100644
--- a/lib/ansible/modules/extras/messaging/rabbitmq_plugin.py
+++ b/lib/ansible/modules/extras/messaging/rabbitmq_plugin.py
@@ -72,7 +72,8 @@ class RabbitMqPlugins(object):
                 bin_path = os.path.join(module.params['prefix'], 'sbin')
             else:
                 # No such path exists.
-                raise Exception("No binary folder in RabbitMQ prefix")
+                raise Exception("No binary folder in prefix %s" %
+                        module.params['prefix'])
 
             self._rabbitmq_plugins = bin_path + "/rabbitmq-plugins"