diff --git a/attribute/generated_test.go b/attribute/generated_test.go
index 6352821..a8a49dd 100644
--- a/attribute/generated_test.go
+++ b/attribute/generated_test.go
@@ -1,19 +1,13 @@
 package attribute_test
 
 import (
-	"testing"
-
-	"gitlab.codemonkeysoftware.net/b/hatmill"
 	"gitlab.codemonkeysoftware.net/b/hatmill/attribute"
+	"testing"
 )
 
-func testAttribValue(t *testing.T, attrib hatmill.Attrib, expectedValue string) {
-	t.Helper()
-	if attrib.ValueString() != expectedValue {
-		t.Fatalf("expected attribute value to be %#v, but got %#v", expectedValue, attrib.ValueString())
+func TestBool(t *testing.T) {
+	attrib := attribute.Disabled()
+	if attrib.Value != nil {
+		t.Fatalf("expected attribute value to be nil, but got %#v", attrib.Value)
 	}
 }
-
-func TestBool(t *testing.T) {
-	testAttribValue(t, attribute.Disabled(), "")
-}