diff --git a/torchtune/datasets/_chat.py b/torchtune/datasets/_chat.py
index 285793085e..751fed95a3 100644
--- a/torchtune/datasets/_chat.py
+++ b/torchtune/datasets/_chat.py
@@ -91,7 +91,7 @@ def _prepare_sample(self, sample: Mapping[str, Any]) -> Tuple[List[int], List[in
         messages = self._convert_to_messages(sample, self.train_on_input)
         if self.chat_format is not None:
             messages = self.chat_format.format(messages)
-        validate_messages(messages)
+        #validate_messages(messages)
         tokens, mask = self._tokenizer.tokenize_messages(
             messages, max_seq_len=self.max_seq_len
         )