diff --git a/examples/simple_regional_private/main.tf b/examples/simple_regional_private/main.tf
index 3483a1ec8..0f703bfaf 100644
--- a/examples/simple_regional_private/main.tf
+++ b/examples/simple_regional_private/main.tf
@@ -49,7 +49,6 @@ module "gke" {
   enable_private_endpoint     = true
   enable_private_nodes        = true
   enable_secret_manager_addon = true
-  master_ipv4_cidr_block      = "172.16.0.0/28"
   default_max_pods_per_node   = 20
   remove_default_node_pool    = true
   deletion_protection         = false