diff --git a/terraform/gitops/pm4ml/pm4ml.tf b/terraform/gitops/pm4ml/pm4ml.tf
index b805ca38f..ab3203c8b 100644
--- a/terraform/gitops/pm4ml/pm4ml.tf
+++ b/terraform/gitops/pm4ml/pm4ml.tf
@@ -263,7 +263,7 @@ variable "opentelemetry_enabled" {
   type        = bool
   description = "bool that enables opentelemetry in cluster"
   default     = false
-} 
+}
 
 variable "opentelemetry_namespace_filtering_enable" {
   type        = bool
@@ -288,5 +288,5 @@ variable "mcm_admin_secret_prefix" {
 }
 
 locals {
-  nat_cidr_list = join(", ", [for ip in var.nat_public_ips : format("%s/32", ip)])
+  nat_cidr_list = join(",", [for ip in var.nat_public_ips : format("%s/32", ip)])
 }
diff --git a/terraform/gitops/proxy-pm4ml/pm4ml.tf b/terraform/gitops/proxy-pm4ml/pm4ml.tf
index 8fe3e1a78..23dda05b8 100644
--- a/terraform/gitops/proxy-pm4ml/pm4ml.tf
+++ b/terraform/gitops/proxy-pm4ml/pm4ml.tf
@@ -155,5 +155,5 @@ variable "pm4ml_external_switch_b_client_secret" {
 }
 
 locals {
-  nat_cidr_list = join(", ", [for ip in var.nat_public_ips : format("%s/32", ip)])
+  nat_cidr_list = join(",", [for ip in var.nat_public_ips : format("%s/32", ip)])
 }