diff --git a/model/tokenizer.py b/model/tokenizer.py
index 9f6cfa9..98a0619 100644
--- a/model/tokenizer.py
+++ b/model/tokenizer.py
@@ -221,7 +221,7 @@ def load(path: str) -> 'BytePairTokenizer':
 
     @staticmethod
     def train_bpe(filepaths: List[str], mincount: int, merges: int) \
-                  -> 'BytePairtokenizer':
+                  -> 'BytePairTokenizer':
         """ Create trained byte pair tokenizer
 
         Args: