diff --git a/builtin/providers/aws/structure_test.go b/builtin/providers/aws/structure_test.go
index a65fdc83c..49b42458f 100644
--- a/builtin/providers/aws/structure_test.go
+++ b/builtin/providers/aws/structure_test.go
@@ -241,19 +241,3 @@ func Test_expandStringList(t *testing.T) {
 	}
 
 }
-
-func Test_expandStringListWildcard(t *testing.T) {
-	stringList := expandStringList([]interface{}{"us-east-1a,us-east-1b"})
-	expected := []string{
-		"us-east-1a",
-		"us-east-1b",
-	}
-
-	if !reflect.DeepEqual(stringList, expected) {
-		t.Fatalf(
-			"Got:\n\n%#v\n\nExpected:\n\n%#v\n",
-			stringList,
-			expected)
-	}
-
-}
diff --git a/builtin/provisioners/remote-exec/resource_provisioner_test.go b/builtin/provisioners/remote-exec/resource_provisioner_test.go
index 74944771f..47a723947 100644
--- a/builtin/provisioners/remote-exec/resource_provisioner_test.go
+++ b/builtin/provisioners/remote-exec/resource_provisioner_test.go
@@ -44,7 +44,7 @@ func TestResourceProvider_Validate_bad(t *testing.T) {
 func TestResourceProvider_generateScript(t *testing.T) {
 	p := new(ResourceProvisioner)
 	conf := testConfig(t, map[string]interface{}{
-		"inline": []string{
+		"inline": []interface{}{
 			"cd /tmp",
 			"wget http://foobar",
 			"exit 0",
@@ -69,7 +69,7 @@ exit 0
 func TestResourceProvider_CollectScripts_inline(t *testing.T) {
 	p := new(ResourceProvisioner)
 	conf := testConfig(t, map[string]interface{}{
-		"inline": []string{
+		"inline": []interface{}{
 			"cd /tmp",
 			"wget http://foobar",
 			"exit 0",
diff --git a/helper/config/validator_test.go b/helper/config/validator_test.go
index cd6aa3c79..c2119d18e 100644
--- a/helper/config/validator_test.go
+++ b/helper/config/validator_test.go
@@ -56,7 +56,7 @@ func TestValidator_array(t *testing.T) {
 	// Valid
 	c = testConfig(t, map[string]interface{}{
 		"foo":    "bar",
-		"nested": []string{"foo", "bar"},
+		"nested": []interface{}{"foo", "bar"},
 	})
 	testValid(v, c)
 
@@ -124,7 +124,7 @@ func TestValidator_complexNested(t *testing.T) {
 		"ingress": []map[string]interface{}{
 			map[string]interface{}{
 				"from_port":   "80",
-				"cidr_blocks": []string{"foo"},
+				"cidr_blocks": []interface{}{"foo"},
 			},
 		},
 	})