diff --git a/.github/workflows/build-check.yml b/.github/workflows/build-check.yml
index 55d242b5..855278a7 100644
--- a/.github/workflows/build-check.yml
+++ b/.github/workflows/build-check.yml
@@ -3,6 +3,7 @@ name: Build check
 on:
   pull_request:
     types: [opened, synchronize, reopened, ready_for_review]
+  workflow_dispatch:        # TODO: remove before opening upstream PR
 
 # Cancel superseded runs on the same PR.
 concurrency: