diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 0b6ddb8..981b512 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -11,3 +11,4 @@ jobs:
         with:
           go-version: '^1.18.0'
       - run: go test ./pmtiles
+      - run: if [ "$(gofmt -s -l . | wc -l)" -gt 0 ]; then exit 1; fi