diff --git a/_example/alb/.terraform.tfstate.lock.info b/_example/alb/.terraform.tfstate.lock.info
deleted file mode 100644
index 55505bc..0000000
--- a/_example/alb/.terraform.tfstate.lock.info
+++ /dev/null
@@ -1 +0,0 @@
-{"ID":"ae58f2a8-554e-dccf-de1a-212576bba8ea","Operation":"OperationTypeApply","Info":"","Who":"prakash@prakash","Version":"0.14.7","Created":"2021-05-20T11:07:36.390861083Z","Path":"terraform.tfstate"}
\ No newline at end of file
diff --git a/_example/alb/example.tf b/_example/alb/example.tf
index 1463bd3..87ca748 100644
--- a/_example/alb/example.tf
+++ b/_example/alb/example.tf
@@ -148,8 +148,8 @@ module "alb" {
   target_id = module.ec2.instance_id
   vpc_id    = module.vpc.vpc_id
 
-  https_enabled            = true
-  http_enabled             = true
+  https_enabled            = false
+  http_enabled             = false
   https_port               = 443
   listener_type            = "forward"
   listener_certificate_arn = "arn:aws:acm:eu-west-1:924144197303:certificate/0418d2ba-91f7-4196-991b-28b5c60cd4cf"
diff --git a/main.tf b/main.tf
index b885c19..8d6fe0f 100644
--- a/main.tf
+++ b/main.tf
@@ -24,7 +24,6 @@ resource "aws_lb" "main" {
   internal                         = var.internal
   load_balancer_type               = var.load_balancer_type
   security_groups                  = var.security_groups
-  drop_invalid_header_fields       = var.drop_invalid_header_fields
   subnets                          = var.subnets
   enable_deletion_protection       = var.enable_deletion_protection
   idle_timeout                     = var.idle_timeout
@@ -32,6 +31,7 @@ resource "aws_lb" "main" {
   enable_http2                     = var.enable_http2
   ip_address_type                  = var.ip_address_type
   tags                             = module.labels.tags
+  drop_invalid_header_fields       = true
 
   timeouts {
     create = var.load_balancer_create_timeout
diff --git a/variables.tf b/variables.tf
index c423e98..7d5594f 100644
--- a/variables.tf
+++ b/variables.tf
@@ -77,11 +77,6 @@ variable "load_balancer_type" {
   sensitive   = true
 }
 
-variable "drop_invalid_header_fields" {
-  type        = bool
-  default     = true
-  description = "Indicates whether HTTP headers with header fields that are not valid are removed by the load balancer (true) or routed to targets (false). The default is false. Elastic Load Balancing requires that message header names contain only alphanumeric characters and hyphens. Only valid for Load Balancers of type application."
-}
 
 variable "subnet_mapping" {
   default     = []