diff --git a/packages/builder/src/helpers/tests/duplicate.test.ts b/packages/builder/src/helpers/tests/duplicate.test.ts
index 131e76a6c2..5e956d7b1c 100644
--- a/packages/builder/src/helpers/tests/duplicate.test.ts
+++ b/packages/builder/src/helpers/tests/duplicate.test.ts
@@ -49,7 +49,7 @@ describe("getSequentialName", () => {
 
   it("handles nullish prefix", async () => {
     const name = getSequentialName([], null)
-    expect(name).toBe(null)
+    expect(name).toBe("")
   })
 
   it("handles just the prefix", async () => {