diff --git a/shortenit/pointer.py b/shortenit/pointer.py
index 97f73bc..eba6d41 100644
--- a/shortenit/pointer.py
+++ b/shortenit/pointer.py
@@ -6,10 +6,6 @@ import logging
 from cloudant.document import Document
 
 
-
-CHARS = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ'
-
-
 class Pointer:
     """
     Pointer object.