diff --git a/pyproject.toml b/pyproject.toml
index eb55a9ffc5..5286724b5c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -172,7 +172,8 @@ plugins.md033.enabled = false # inline-html
 plugins.md046.enabled = false # code-block-style
 plugins.md024.allow_different_nesting = true # no-duplicate-headers
 
-[tool.ty]
+[tool.ty.src]
+root = "./vllm"
 respect-ignore-files = true
 
 [tool.ty.environment]