diff --git a/jedi/parser/fast.py b/jedi/parser/fast.py
index 35bb855..bc43359 100644
--- a/jedi/parser/fast.py
+++ b/jedi/parser/fast.py
@@ -75,7 +75,8 @@ class MergedNamesDict(object):
         return iter(set(key for dct in self.dicts for key in dct))
 
     def __getitem__(self, value):
-        return list(chain.from_iterable(dct.get(value, []) for dct in self.dicts))
+        return list(chain.from_iterable((dct[value] if value in dct else []) for dct in self.dicts))
+        # return list(chain.from_iterable(dct.get(value, []) for dct in self.dicts))
 
     def items(self):
         dct = {}