diff --git a/sns_topic.py b/sns_topic.py
index 7bf643cb96e..bcaf44a8840 100644
--- a/sns_topic.py
+++ b/sns_topic.py
@@ -519,8 +519,8 @@ def _set_topic_subs_attributes(self):
         for sub in list_topic_subscriptions(self.connection, self.module, self.topic_arn):
             sub_key = (sub['Protocol'], sub['Endpoint'])
             sub_arn = sub['SubscriptionArn']
-            if sub_key not in self.desired_subscription_attributes:
-                # subscription isn't defined in desired, skipping
+            if not self.desired_subscription_attributes.get(sub_key):
+                # subscription attributes aren't defined in desired, skipping
                 continue
 
             try: