diff --git a/html5lib/sanitizer.py b/html5lib/sanitizer.py
index 3024ef24..e7956578 100644
--- a/html5lib/sanitizer.py
+++ b/html5lib/sanitizer.py
@@ -214,8 +214,7 @@ def sanitize_token(self, token):
     def allowed_token(self, token, token_type):
         if "data" in token:
             attrs = dict((name, val) for name, val in
-                          token["data"][::-1]
-                          if name in self.allowed_attributes)
+                         token["data"][::-1] if name in self.allowed_attributes)
             for attr in self.attr_val_is_uri:
                 if attr not in attrs:
                     continue