diff --git a/README.md b/README.md
index af2498b..e481f02 100644
--- a/README.md
+++ b/README.md
@@ -51,6 +51,7 @@ module "nginx-controller" {
 | name  | Name of created helm release | `string` | `ingress-nginx` | no |
 | namespace\_name  | Name of namespace where nginx controller should be deployed | `string` | `kube-system` | no |
 | chart\_version  | HELM Chart Version for controller ( It is not recommended to change )| `string` | `4.0.6` | no |
+| atomic  | If set, installation process purges chart on fail | `bool` | `false` | no |
 | ingress\_class\_name  | IngressClass resource name | `string` | `nginx` | no |
 | ingress\_class\_is_default  | IngressClass resource default for cluster | `bool` | `true` | no |
 | ip_address | External Static Address for loadbalancer (Doesn't work with AWS) | `string` | n/a | no |
@@ -80,4 +81,4 @@ module "nginx-controller" {
 | terraform | >= 0.13.0 |
 | helm | >= 2.1.0 |
 
-## Kubernetes version: `>=1.19`
\ No newline at end of file
+## Kubernetes version: `>=1.19`
diff --git a/locals.tf b/locals.tf
index 7073cc6..f2c7dd8 100644
--- a/locals.tf
+++ b/locals.tf
@@ -1,6 +1,6 @@
 locals {
-  helm_chart            = "ingress-nginx"
-  helm_repository       = "https://kubernetes.github.io/ingress-nginx"
+  helm_chart      = "ingress-nginx"
+  helm_repository = "https://kubernetes.github.io/ingress-nginx"
 
   loadBalancerIP = var.ip_address == null ? [] : [
     {
diff --git a/main.tf b/main.tf
index bbedac3..9c1a3a7 100644
--- a/main.tf
+++ b/main.tf
@@ -4,6 +4,7 @@ resource "helm_release" "application" {
   namespace  = var.namespace
   repository = local.helm_repository
   version    = var.chart_version
+  atomic     = var.atomic
 
   values = [var.disable_heavyweight_metrics ? file("${path.module}/templates/metrics-disable.yaml") : ""]
 
@@ -11,7 +12,7 @@ resource "helm_release" "application" {
     name  = "controller.kind"
     value = var.controller_kind
   }
-  set     {
+  set {
     name  = "controller.ingressClassResource.name"
     value = var.ingress_class_name
   }
@@ -69,4 +70,4 @@ resource "helm_release" "application" {
       type  = lookup(set.value, "type", null)
     }
   }
-}
\ No newline at end of file
+}
diff --git a/variables.tf b/variables.tf
index dc92960..52458e5 100644
--- a/variables.tf
+++ b/variables.tf
@@ -15,6 +15,12 @@ variable "chart_version" {
   default     = "4.0.6"
 }
 
+variable "atomic" {
+  type        = bool
+  description = "If set, installation process purges chart on fail"
+  default     = false
+}
+
 variable "ingress_class_name" {
   type        = string
   description = "IngressClass resource name"
@@ -90,4 +96,4 @@ variable "disable_heavyweight_metrics" {
 variable "additional_set" {
   description = "Add additional set for helm"
   default     = []
-}
\ No newline at end of file
+}