diff --git a/terraform/apps/mocktail.tf b/terraform/apps/mocktail.tf
index 0c43980..c68191d 100644
--- a/terraform/apps/mocktail.tf
+++ b/terraform/apps/mocktail.tf
@@ -123,6 +123,10 @@ resource "google_cloud_run_v2_service" "mocktail" {
         name  = "FIRESTORE_USE_TLS"
         value = "true"
       }
+      env {
+        name  = "FIRESTORE_PROJECT_ID"
+        value = var.project_id
+      }
       env {
         name  = "FIRESTORE_DB"
         value = "mocktail"