diff --git a/terraform-plan/main.sh b/terraform-plan/main.sh
index e865e0976..35dfea28a 100644
--- a/terraform-plan/main.sh
+++ b/terraform-plan/main.sh
@@ -2,6 +2,10 @@
 
 set -euo pipefail
 
+if [ "${TFACTION_DEBUG:-}" = true]; then
+	set -x
+fi
+
 if [ -n "${TFACTION_DRIFT_ISSUE_NUMBER:-}" ]; then
 	export TFCMT_CONFIG=$GITHUB_ACTION_PATH/tfcmt-drift.yaml
 fi
diff --git a/terraform-plan/renovate_change.sh b/terraform-plan/renovate_change.sh
index 52dc14f10..8f516b013 100644
--- a/terraform-plan/renovate_change.sh
+++ b/terraform-plan/renovate_change.sh
@@ -2,6 +2,10 @@
 
 set -euo pipefail
 
+if [ "${TFACTION_DEBUG:-}" = true]; then
+	set -x
+fi
+
 # In the pull request created by Renovate, the result of `terraform plan` must be `No change` to enable automerge safely.
 # If you allow changes, please set the pull request label `renovate-change`.
 if [ "$CI_INFO_PR_AUTHOR" = "$RENOVATE_LOGIN" ]; then