diff --git a/examples/factories/project-factory/main.tf b/examples/factories/project-factory/main.tf
index 774fc1d6..b9f64361 100644
--- a/examples/factories/project-factory/main.tf
+++ b/examples/factories/project-factory/main.tf
@@ -28,7 +28,7 @@ locals {
   _service_accounts_iam = {
     for r in local._service_accounts_iam_bindings : r => [
       for k, v in var.service_accounts :
-      "serviceAccount:${k}@${local._project_id}.iam.gserviceaccount.com"
+      module.service-accounts[k].iam_email
       if try(index(v, r), null) != null
     ]
   }
diff --git a/fast/stages/03-project-factory/dev/main.tf b/fast/stages/03-project-factory/dev/main.tf
index 802bff9d..120b8359 100644
--- a/fast/stages/03-project-factory/dev/main.tf
+++ b/fast/stages/03-project-factory/dev/main.tf
@@ -50,7 +50,7 @@ module "projects" {
   prefix                 = var.prefix
   service_accounts       = try(each.value.service_accounts, {})
   services               = try(each.value.services, [])
-  service_identities_iam = try(each.value.services_iam, {})
+  service_identities_iam = try(each.value.service_identities_iam, {})
   vpc                    = try(each.value.vpc, null)
 }