diff --git a/parse.py b/parse.py
index 33462f8..8f73fb5 100644
--- a/parse.py
+++ b/parse.py
@@ -135,7 +135,7 @@ def dst(self, dt):
 
     def __eq__(self, other):
         if not isinstance(other, FixedTzOffset):
-            return False
+            return NotImplemented
         return self._name == other._name and self._offset == other._offset