diff --git a/variables.tf b/variables.tf
index 43e8ade..013aff3 100644
--- a/variables.tf
+++ b/variables.tf
@@ -174,10 +174,10 @@ variable "ansible_extra_options" {
 }
 
 locals {
-    private_key_file    = "${var.private_key_file == "" ? "${path.cwd}/data/id_rsa" : "${var.private_key_file}" }"
-    public_key_file     = "${var.public_key_file == "" ? "${path.cwd}/data/id_rsa.pub" : "${var.public_key_file}" }"
-    private_key         = "${var.private_key == "" ? file(coalesce(local.private_key_file, "/dev/null")) : "${var.private_key}" }"
-    public_key          = "${var.public_key == "" ? file(coalesce(local.public_key_file, "/dev/null")) : "${var.public_key}" }"
+    private_key_file    = var.private_key_file == "" ? "${path.cwd}/data/id_rsa" : var.private_key_file
+    public_key_file     = var.public_key_file == "" ? "${path.cwd}/data/id_rsa.pub" : var.public_key_file
+    private_key         = var.private_key == "" ? file(coalesce(local.private_key_file, "/dev/null")) : var.private_key
+    public_key          = var.public_key == "" ? file(coalesce(local.public_key_file, "/dev/null")) : var.public_key
 }