diff --git a/terraform/gcp/single-into-existing-vpc/variables.tf b/terraform/gcp/single-into-existing-vpc/variables.tf
index 0b4718bc..cc620851 100755
--- a/terraform/gcp/single-into-existing-vpc/variables.tf
+++ b/terraform/gcp/single-into-existing-vpc/variables.tf
@@ -110,7 +110,7 @@ variable "network_espSourceRanges" {
 variable "diskType" {
   type = string
   description ="Disk type"
-  default = "pd-ssd"
+  default = "SSD Persistent Disk"
 }
 variable "bootDiskSizeGb" {
   type = number
diff --git a/terraform/gcp/single-into-new-vpc/variables.tf b/terraform/gcp/single-into-new-vpc/variables.tf
index 51d15492..3d6454cf 100755
--- a/terraform/gcp/single-into-new-vpc/variables.tf
+++ b/terraform/gcp/single-into-new-vpc/variables.tf
@@ -112,7 +112,7 @@ variable "network_espSourceRanges" {
 variable "diskType" {
   type = string
   description ="Disk type"
-  default = "pd-ssd"
+  default = "SSD Persistent Disk"
 }
 variable "bootDiskSizeGb" {
   type = number