diff --git a/llms/mlx_lm/__init__.py b/llms/mlx_lm/__init__.py
index 502c78e5f..538be9277 100644
--- a/llms/mlx_lm/__init__.py
+++ b/llms/mlx_lm/__init__.py
@@ -1,4 +1,9 @@
 # Copyright © 2023-2024 Apple Inc.
 
+import os
+
 from ._version import __version__
+
+os.environ["TRANSFORMERS_NO_ADVISORY_WARNINGS"] = "1"
+
 from .utils import convert, generate, load, stream_generate
diff --git a/llms/mlx_lm/tokenizer_utils.py b/llms/mlx_lm/tokenizer_utils.py
index 78ec2ff80..0cbc3b9bc 100644
--- a/llms/mlx_lm/tokenizer_utils.py
+++ b/llms/mlx_lm/tokenizer_utils.py
@@ -169,7 +169,7 @@ class BPEStreamingDetokenizer(StreamingDetokenizer):
     """
 
     _byte_decoder = None
-    _space_matches = (".", "?", "!", ",", "'", "n't", "'m", "'s", "'ve", "'re")
+    _space_matches = (".", "?", "!", ",", "n't", "'m", "'s", "'ve", "'re")
 
     def __init__(self, tokenizer):
 
diff --git a/llms/tests/test_tokenizers.py b/llms/tests/test_tokenizers.py
index 7b4828b1e..03445c1ff 100644
--- a/llms/tests/test_tokenizers.py
+++ b/llms/tests/test_tokenizers.py
@@ -51,6 +51,9 @@ def check(tokens):
         tokens = tokenizer.encode("3 3")
         check(tokens)
 
+        tokens = tokenizer.encode("import 'package:flutter/material.dart';")
+        check(tokens)
+
     def test_tokenizers(self):
         tokenizer_repos = [
             ("mlx-community/Qwen1.5-0.5B-Chat-4bit", BPEStreamingDetokenizer),