diff --git a/unsloth/tokenizer_utils.py b/unsloth/tokenizer_utils.py
index 0136e3498e..087a9a7f8a 100644
--- a/unsloth/tokenizer_utils.py
+++ b/unsloth/tokenizer_utils.py
@@ -602,7 +602,10 @@ def load_correct_tokenizer(
     old_chat_template = getattr(tokenizer, "chat_template", None)
 
     # Ignore mistral type models since they don't have an add_generation_prompt
-    if "mistral" in str(getattr(tokenizer, "name_or_path", "")).lower():
+    if any(
+        s in str(getattr(tokenizer, "name_or_path", "")).lower()
+        for s in ["mistral", "qwen3guard"]
+    ):
         chat_template = old_chat_template
 
     # Also check Llama-2 old style models