diff --git a/soapbox/models.py b/soapbox/models.py
index <HASH>..<HASH> 100644
--- a/soapbox/models.py
+++ b/soapbox/models.py
@@ -39,11 +39,10 @@ class MessageManager(models.Manager):
         URL.
 
         """
-        results = set()
-        for message in self.active():
-            if message.is_global or message.match(url):
-                results.add(message)
-        return list(results)
+        return list({
+            message for message in self.active() if
+            message.is_global or message.match(url)
+        })
 
 
 @python_2_unicode_compatible
Slightly cleaner approach to message matching.

This also has the side effect of explicitly breaking Python <I>
compatibility, which should not break anyone's install since Python
<I> is unsupported by any current version of Django, but is worth
noting.