diff --git a/__tests__/isDraftable.js b/__tests__/isDraftable.js
index a125d7b0..4aa2ca63 100644
--- a/__tests__/isDraftable.js
+++ b/__tests__/isDraftable.js
@@ -1,7 +1,7 @@
 "use strict"
-import { isDraftable } from "../src/immer"
+import {isDraftable} from "../src/immer"
 
 test("non-plain object with undefined constructor doesn't error", () => {
-    const obj = Object.create(Object.create(null))
-    expect(isDraftable(obj).toBe(true);
-})
\ No newline at end of file
+	const obj = Object.create(Object.create(null))
+	expect(isDraftable(obj)).toBe(false)
+})