diff --git a/components/google-cloud/google_cloud_pipeline_components/proto/template_metadata.proto b/components/google-cloud/google_cloud_pipeline_components/proto/template_metadata.proto
index b886ca5c985..b35665eb863 100644
--- a/components/google-cloud/google_cloud_pipeline_components/proto/template_metadata.proto
+++ b/components/google-cloud/google_cloud_pipeline_components/proto/template_metadata.proto
@@ -279,6 +279,10 @@ message GoogleCloudProjectQuotaValidation {
     // A double precision floating point value.
     double double_value = 3;
   }
+  // Not implemented yet, project region is used instead.
+  // Optional. Region of the quota. Example: "us-central1"
+  // If not specified, the default region (project region) will be used.
+  string region = 4;
 }
 
 // Describes the details for Google Cloud Service Account Validation.