diff --git a/python/pyproject.toml b/python/pyproject.toml
index 752e4e3cb..11f6f80b8 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -130,6 +130,7 @@ dev_cpu = ["sglang[all_cpu]", "sglang[test]"]
 "sglang" = [
     "srt/layers/moe/fused_moe_triton/configs/*/*.json",
     "srt/layers/quantization/configs/*.json",
+    "srt/mem_cache/storage/hf3fs/hf3fs_utils.cpp",
 ]
 
 [tool.setuptools.packages.find]