diff --git a/test/test_terraform.py b/test/test_terraform.py
index 1f36b5e..e45b265 100644
--- a/test/test_terraform.py
+++ b/test/test_terraform.py
@@ -430,8 +430,7 @@ class TestTerraform:
         with pytest.raises(TerraformCommandError) as e:
             tf.plan(plan)
         assert (
-            e.value.err
-            == """\nError: Missing required argument\n\nThe argument "region" is required, but was not set.\n\n"""
+            "\nError: Unsupported argument\n\n" in e.value.err
         )
 
     def test_fmt(self, fmt_test_file):
diff --git a/test/vars_require_input/main.tf b/test/vars_require_input/main.tf
index d3eaed3..1638666 100644
--- a/test/vars_require_input/main.tf
+++ b/test/vars_require_input/main.tf
@@ -1,16 +1,16 @@
 variable "ami" {
   default = "foo"
-  type    = "string"
+  type    = string
 }
 
 variable "list" {
   default = []
-  type    = "list"
+  type    = list
 }
 
 variable "map" {
   default = {}
-  type    = "map"
+  type    = map
 }
 
 resource "aws_instance" "bar" {