diff --git a/python/sglang/srt/speculative/spec_info.py b/python/sglang/srt/speculative/spec_info.py
index 2cfd62697..2b0d48aaa 100644
--- a/python/sglang/srt/speculative/spec_info.py
+++ b/python/sglang/srt/speculative/spec_info.py
@@ -139,7 +139,6 @@ class SpeculativeAlgorithm(metaclass=_SpeculativeAlgorithmMeta):
         for flag_name in flag_iter:
             cls._flags[flag_name.upper()].add(algo.value)
 
-    @classmethod
     @classmethod
     def from_string(cls, name: Optional[str]) -> SpeculativeAlgorithm:
         if name is None: