diff --git a/tests/test_core.rs b/tests/test_core.rs
index cb2467cfb..adaa06e66 100644
--- a/tests/test_core.rs
+++ b/tests/test_core.rs
@@ -226,7 +226,7 @@ fn batching() {
     let pit = xs
         .iter()
         .cloned()
-        .batching(|it| it.next().and_then(|x| it.next().map(|y| (x, y))));
+        .batching(|it| it.next_array::<2>().map(|[a, b]| (a, b)));
     it::assert_equal(pit, ys.iter().cloned());
 }