diff --git a/tests/ui/zerosized.stderr b/tests/ui/zerosized.stderr
index 2443140..39f1556 100644
--- a/tests/ui/zerosized.stderr
+++ b/tests/ui/zerosized.stderr
@@ -2,6 +2,7 @@ error[E0080]: could not evaluate static initializer
  --> tests/ui/zerosized.rs:7:1
   |
 7 | #[distributed_slice]
-  | ^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'assertion failed: ::linkme::__private::mem::size_of::<<[Unit] as\n            ::linkme::__private::Slice>::Element>() > 0', $DIR/tests/ui/zerosized.rs:7:1
+  | ^^^^^^^^^^^^^^^^^^^^ the evaluated program panicked at 'assertion failed: ::linkme::__private::mem::size_of::<<[Unit] as
+            ::linkme::__private::Slice>::Element>() > 0', $DIR/tests/ui/zerosized.rs:7:1
   |
   = note: this error originates in the macro `::linkme::__private::assert` (in Nightly builds, run with -Z macro-backtrace for more info)