diff --git a/relational/rtypes.py b/relational/rtypes.py
index 7108f7b..80b3373 100644
--- a/relational/rtypes.py
+++ b/relational/rtypes.py
@@ -109,9 +109,6 @@ class Rdate:
     def __lt__(self, other):
         return self.intdate < other.intdate
 
-    def __ne__(self, other):
-        return self.intdate != other.intdate
-
     def __sub__(self, other):
         return (self.intdate - other.intdate).days