diff --git a/variables.tf b/variables.tf
index 5b0ae7aea..3ac3fb27a 100644
--- a/variables.tf
+++ b/variables.tf
@@ -295,7 +295,7 @@ variable "instance_role_runner_json" {
 
 variable "ami_filter" {
   description = "List of maps used to create the AMI filter for the Gitlab runner agent AMI. Currently Amazon Linux 2 `amzn2-ami-hvm-2.0.????????-x86_64-ebs` looks to *not* be working for this configuration."
-  # type        = list(string)
+  type        = map(list(string))
 
   default = {
     name = ["amzn-ami-hvm-2018.03*-x86_64-ebs"]
diff --git a/versions.tf b/versions.tf
deleted file mode 100644
index ac97c6ac8..000000000
--- a/versions.tf
+++ /dev/null
@@ -1,4 +0,0 @@
-
-terraform {
-  required_version = ">= 0.12"
-}