diff --git a/tests/close.test.ts b/tests/close.test.ts
index 86e14e6..30fe2eb 100644
--- a/tests/close.test.ts
+++ b/tests/close.test.ts
@@ -184,7 +184,7 @@ describe("closeMultiModel", () => {
 
     expect(result.success).toBe(true);
     // Expect the warning message to be captured in instructions
-    expect(result.instructions?.some(msg => msg.includes('Failed to create tag'))).toBe(true);
+    expect(result.instructions.includes('Failed to create tag')).toBe(true);
     expect(result.tagsCreated).toEqual([]);
   });