diff --git a/buildkite.yml b/buildkite.yml
index db64510..7255ca9 100644
--- a/buildkite.yml
+++ b/buildkite.yml
@@ -5,6 +5,7 @@ steps:
   # Run tests
   - command: |-
       yarn
+      git diff --exit-code
       yarn run prettier-check
       yarn run tslint
       yarn run typecheck