diff --git a/python/sglang/srt/utils.py b/python/sglang/srt/utils.py
index 828b23039..0c16667ef 100644
--- a/python/sglang/srt/utils.py
+++ b/python/sglang/srt/utils.py
@@ -2089,7 +2089,6 @@ def is_fa3_default_architecture(hf_config):
         "Qwen2ForCausalLM",
         "Llama4ForConditionalGeneration",
         "LlamaForCausalLM",
-        "MistralForCausalLM",
         "Gemma2ForCausalLM",
         "Gemma3ForConditionalGeneration",
         "Qwen3ForCausalLM",