diff --git a/bindings/python/tokenizers/implementations/base_tokenizer.py b/bindings/python/tokenizers/implementations/base_tokenizer.py
index e6a8a5cc..a33693c6 100644
--- a/bindings/python/tokenizers/implementations/base_tokenizer.py
+++ b/bindings/python/tokenizers/implementations/base_tokenizer.py
@@ -1,4 +1,4 @@
-from tokenizers import Tokenizer, Encoding
+from tokenizers import Tokenizer, Encoding, AddedToken
 from tokenizers.models import TokenizedSequence, TokenizedSequenceWithOffsets
 
 from typing import List, Union, Tuple, Optional