diff --git a/.github/workflows/workflow.yaml b/.github/workflows/workflow.yaml
index 9b61adcb8..087da1c87 100644
--- a/.github/workflows/workflow.yaml
+++ b/.github/workflows/workflow.yaml
@@ -130,9 +130,6 @@ jobs:
           options: ${{ env.NIX_SHELL_ARGS }}
           run: |
             set -euo pipefail
-            # DEBUG BEGIN
-            set -x
-            # DEBUG END
             cd rules_haskell_tests
             # XXX run start script `--with-bzlmod=true` when supported
             if ! ${{ matrix.bzlmod }}; then
@@ -140,6 +137,7 @@ jobs:
             fi
             bazel build //tests:run-tests
             # Shutdown Bazel to free up memory
+            # https://github.com/tweag/rules_haskell/issues/2089.
             bazel shutdown
             ./bazel-ci-bin/tests/run-tests
             bazel coverage //...