diff --git a/modules/net-lb-app-ext/README.md b/modules/net-lb-app-ext/README.md
index 2c7327c65d..69c26080bc 100644
--- a/modules/net-lb-app-ext/README.md
+++ b/modules/net-lb-app-ext/README.md
@@ -799,7 +799,7 @@ module "glb-0" {
| [backend_buckets_config](variables.tf#L23) | Backend buckets configuration. | map(object({…})) | | {} |
| [backend_service_configs](variables-backend-service.tf#L19) | Backend service level configuration. | map(object({…})) | | {} |
| [description](variables.tf#L56) | Optional description used for resources. | string | | "Terraform managed." |
-| [group_configs](variables.tf#L62) | Optional unmanaged groups to create. Can be referenced in backends via key or outputs. | map(object({…})) | | {} |
+| [group_configs](variables.tf#L62) | Optional unmanaged groups to create. Can be referenced in backends via key or outputs. | map(object({…})) | | {} |
| [health_check_configs](variables-health-check.tf#L19) | Optional auto-created health check configurations, use the output self-link to set it in the auto healing policy. Refer to examples for usage. | map(object({…})) | | {…} |
| [https_proxy_config](variables.tf#L74) | HTTPS proxy connfiguration. | object({…}) | | {} |
| [labels](variables.tf#L85) | Labels set on resources. | map(string) | | {} |
diff --git a/modules/net-lb-app-ext/variables.tf b/modules/net-lb-app-ext/variables.tf
index b956f2a9f5..bc254091b5 100644
--- a/modules/net-lb-app-ext/variables.tf
+++ b/modules/net-lb-app-ext/variables.tf
@@ -63,7 +63,7 @@ variable "group_configs" {
description = "Optional unmanaged groups to create. Can be referenced in backends via key or outputs."
type = map(object({
zone = string
- instances = optional(list(string), [])
+ instances = optional(list(string))
named_ports = optional(map(number), {})
project_id = optional(string)
}))
diff --git a/modules/net-lb-app-int/README.md b/modules/net-lb-app-int/README.md
index 1b07cb171d..bec1cd57cb 100644
--- a/modules/net-lb-app-int/README.md
+++ b/modules/net-lb-app-int/README.md
@@ -645,7 +645,7 @@ module "ilb-l7" {
| [backend_service_configs](variables-backend-service.tf#L19) | Backend service level configuration. | map(object({…})) | | {} |
| [description](variables.tf#L23) | Optional description used for resources. | string | | "Terraform managed." |
| [global_access](variables.tf#L30) | Allow client access from all regions. | bool | | null |
-| [group_configs](variables.tf#L36) | Optional unmanaged groups to create. Can be referenced in backends via key or outputs. | map(object({…})) | | {} |
+| [group_configs](variables.tf#L36) | Optional unmanaged groups to create. Can be referenced in backends via key or outputs. | map(object({…})) | | {} |
| [health_check_configs](variables-health-check.tf#L19) | Optional auto-created health check configurations, use the output self-link to set it in the auto healing policy. Refer to examples for usage. | map(object({…})) | | {…} |
| [labels](variables.tf#L48) | Labels set on resources. | map(string) | | {} |
| [neg_configs](variables.tf#L59) | Optional network endpoint groups to create. Can be referenced in backends via key or outputs. | map(object({…})) | | {} |
diff --git a/modules/net-lb-app-int/variables.tf b/modules/net-lb-app-int/variables.tf
index 40158aca0f..64127c0103 100644
--- a/modules/net-lb-app-int/variables.tf
+++ b/modules/net-lb-app-int/variables.tf
@@ -37,7 +37,7 @@ variable "group_configs" {
description = "Optional unmanaged groups to create. Can be referenced in backends via key or outputs."
type = map(object({
zone = string
- instances = optional(list(string), [])
+ instances = optional(list(string))
named_ports = optional(map(number), {})
project_id = optional(string)
}))
diff --git a/modules/net-lb-ext/README.md b/modules/net-lb-ext/README.md
index 3c38a7d273..44bb0605f0 100644
--- a/modules/net-lb-ext/README.md
+++ b/modules/net-lb-ext/README.md
@@ -163,7 +163,7 @@ module "nlb" {
| [backend_service_config](variables.tf#L23) | Backend service level configuration. | object({…}) | | {} |
| [backends](variables.tf#L72) | Load balancer backends, balancing mode is one of 'CONNECTION' or 'UTILIZATION'. | list(object({…})) | | [] |
| [description](variables.tf#L83) | Optional description used for resources. | string | | "Terraform managed." |
-| [group_configs](variables.tf#L89) | Optional unmanaged groups to create. Can be referenced in backends via outputs. | map(object({…})) | | {} |
+| [group_configs](variables.tf#L89) | Optional unmanaged groups to create. Can be referenced in backends via outputs. | map(object({…})) | | {} |
| [health_check](variables.tf#L100) | Name of existing health check to use, disables auto-created health check. | string | | null |
| [health_check_config](variables.tf#L106) | Optional auto-created health check configuration, use the output self-link to set it in the auto healing policy. Refer to examples for usage. | object({…}) | | {…} |
| [labels](variables.tf#L180) | Labels set on resources. | map(string) | | {} |
diff --git a/modules/net-lb-ext/variables.tf b/modules/net-lb-ext/variables.tf
index fb85afbb0c..58ae663afc 100644
--- a/modules/net-lb-ext/variables.tf
+++ b/modules/net-lb-ext/variables.tf
@@ -90,7 +90,7 @@ variable "group_configs" {
description = "Optional unmanaged groups to create. Can be referenced in backends via outputs."
type = map(object({
zone = string
- instances = optional(list(string), [])
+ instances = optional(list(string))
named_ports = optional(map(number), {})
}))
default = {}
diff --git a/modules/net-lb-int/README.md b/modules/net-lb-int/README.md
index b7f1a91c5f..1282af09d6 100644
--- a/modules/net-lb-int/README.md
+++ b/modules/net-lb-int/README.md
@@ -189,7 +189,7 @@ module "ilb" {
| [backends](variables.tf#L56) | Load balancer backends, balancing mode is one of 'CONNECTION' or 'UTILIZATION'. | list(object({…})) | | [] |
| [description](variables.tf#L75) | Optional description used for resources. | string | | "Terraform managed." |
| [global_access](variables.tf#L81) | Global access, defaults to false if not set. | bool | | null |
-| [group_configs](variables.tf#L87) | Optional unmanaged groups to create. Can be referenced in backends via outputs. | map(object({…})) | | {} |
+| [group_configs](variables.tf#L87) | Optional unmanaged groups to create. Can be referenced in backends via outputs. | map(object({…})) | | {} |
| [health_check](variables.tf#L99) | Name of existing health check to use, disables auto-created health check. | string | | null |
| [health_check_config](variables.tf#L105) | Optional auto-created health check configuration, use the output self-link to set it in the auto healing policy. Refer to examples for usage. | object({…}) | | {…} |
| [labels](variables.tf#L179) | Labels set on resources. | map(string) | | {} |
diff --git a/modules/net-lb-int/variables.tf b/modules/net-lb-int/variables.tf
index 08c0f3b380..32686eeb3a 100644
--- a/modules/net-lb-int/variables.tf
+++ b/modules/net-lb-int/variables.tf
@@ -89,7 +89,7 @@ variable "group_configs" {
type = map(object({
zone = string
description = optional(string, "Terraform managed.")
- instances = optional(list(string), [])
+ instances = optional(list(string))
named_ports = optional(map(number), {})
}))
default = {}