diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index ee3f61b6..169191d0 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -33,3 +33,5 @@ jobs:
       - uses: actions/checkout@v2
       - uses: bufbuild/buf-setup-action@v0.7.0
       - uses: bufbuild/buf-lint-action@v1
+        with:
+          input: 'proto'