diff --git a/synapse/util/presentable_names.py b/synapse/util/presentable_names.py
index f80a7fe58..13def9177 100644
--- a/synapse/util/presentable_names.py
+++ b/synapse/util/presentable_names.py
@@ -142,4 +142,4 @@ def _state_as_two_level_dict(state):
 
 
 def _looks_like_an_alias(string):
-    return ALIAS_RE.match(string) is not None
\ No newline at end of file
+    return ALIAS_RE.match(string) is not None