diff --git a/main.tf b/main.tf
index 8936770..9483336 100644
--- a/main.tf
+++ b/main.tf
@@ -14,6 +14,7 @@ resource "aws_cloudformation_stack" "default" {
   # When disable_rollback is false, use the value of var.on_failure
   on_failure         = var.disable_rollback ? null : var.on_failure
   disable_rollback   = var.disable_rollback
+  iam_role_arn       = var.iam_role_arn
   timeout_in_minutes = var.timeout_in_minutes
 
   policy_body = var.policy_body
diff --git a/variables.tf b/variables.tf
index da970cb..0477fa6 100644
--- a/variables.tf
+++ b/variables.tf
@@ -28,6 +28,12 @@ variable "on_failure" {
   description = "Action to be taken if stack creation fails. This must be one of: `DO_NOTHING`, `ROLLBACK`, or `DELETE`"
 }
 
+variable "iam_role_arn" {
+  type        = string
+  default     = null
+  description = "The ARN of an IAM role that AWS CloudFormation assumes to create the stack. If you don't specify a value, AWS CloudFormation uses the role that was previously associated with the stack. If no role is available, AWS CloudFormation uses a temporary session that is generated from your user credentials"
+}
+
 variable "timeout_in_minutes" {
   type        = number
   default     = 30