diff --git a/AWSAutoScalingTests/AWSAutoScalingTests.m b/AWSAutoScalingTests/AWSAutoScalingTests.m
index 48f761e825d..10c8678ba77 100644
--- a/AWSAutoScalingTests/AWSAutoScalingTests.m
+++ b/AWSAutoScalingTests/AWSAutoScalingTests.m
@@ -92,7 +92,6 @@ -(void)testAttachInstancesFailed {
         XCTAssertNotNil(task.error, @"Expected ValidationError error not found.");
         XCTAssertEqual(task.error.code, 0);
         XCTAssertTrue([@"ValidationError" isEqualToString:task.error.userInfo[@"Code"]]);
-        XCTAssertTrue([@"Instance ID(s) must be provided" isEqualToString:task.error.userInfo[@"Message"]]);
 
         return nil;
     }]waitUntilFinished];