diff --git a/modules/datastore/postgres/gcp-cloudsql/1.0/variables.tf b/modules/datastore/postgres/gcp-cloudsql/1.0/variables.tf
index 17e1dc5a..5bcf2e55 100644
--- a/modules/datastore/postgres/gcp-cloudsql/1.0/variables.tf
+++ b/modules/datastore/postgres/gcp-cloudsql/1.0/variables.tf
@@ -82,7 +82,7 @@ variable "inputs" {
   type = object({
     gcp_provider = object({
       attributes = object({
-        project     = string
+        project_id  = string
         credentials = string
       })
     })