diff --git a/deployment/modules/gcp/example-gcp/main.tf b/deployment/modules/gcp/example-gcp/main.tf
index bedf5312..83581e37 100644
--- a/deployment/modules/gcp/example-gcp/main.tf
+++ b/deployment/modules/gcp/example-gcp/main.tf
@@ -95,7 +95,7 @@ resource "google_cloud_run_v2_service" "default" {
         "--logtostderr",
         "--v=1",
         "--bucket=${module.gcs.log_bucket.id}",
-        "--spanner=${module.gcs.log_spanner_db.id}",
+        "--spanner=projects/${var.project_id}/instances/${module.gcs.log_spanner_instance.name}/databases/${module.gcs.log_spanner_db.name}",
         "--project=${var.project_id}",
         "--listen=:8080",
         "--kms_key=${google_kms_crypto_key_version.log_signer.id}",