diff --git a/variables.security.tf b/variables.security.tf
index d057cb2..b49b9cd 100644
--- a/variables.security.tf
+++ b/variables.security.tf
@@ -152,7 +152,7 @@ variable "default_rules" {
       source_port_range          = "*"
     }
   }
-  nullable = false
+  nullable    = false
   description = <<DESCRIPTION
   A map of default security rules to be created in **every** Network Security Group, except if you specificy "network_security_group_config -> Azure default" in the subnet configuration.
   but of course, you can override these defaults by specifying the same rule in a new `default_rules` map.
@@ -332,7 +332,7 @@ variable "azure_bastion_security_rules" {
       source_port_range          = "*"
     }
   }
-  nullable = false
+  nullable    = false
   description = <<DESCRIPTION
   A map of security rules to be created in the AzureBastionSubnet Network Security Group. The key of the map is the name of the security rule.
   This Map contains the required rules for the Azure Bastion Subnet. These rules are required for the Azure Bastion service to work properly.
diff --git a/variables.tf b/variables.tf
index 276d9a9..5075aea 100644
--- a/variables.tf
+++ b/variables.tf
@@ -195,7 +195,7 @@ variable "private_dns" {
     zone_link_name      = optional(string)
     resource_group_name = optional(string)
   }))
-  default = null
+  default     = null
   description = <<DESCRIPTION
 This object describes the private DNS configuration for the virtual network.
 
@@ -232,8 +232,8 @@ variable "public_ip" {
     sku_tier          = optional(string, "Regional")
     zones             = optional(list(string))
   })
-  default  = {}
-  nullable = true
+  default     = {}
+  nullable    = true
   description = <<DESCRIPTION
 This object describes the public IP configuration when creating a public IP.
 Its is preconfigured by the Nat Gateway.