diff --git a/collects/tests/racket/contract-mzlib-test.rktl b/collects/tests/racket/contract-mzlib-test.rktl
index 76c49f9..597aeff 100644
--- a/collects/tests/racket/contract-mzlib-test.rktl
+++ b/collects/tests/racket/contract-mzlib-test.rktl
@@ -2730,7 +2730,7 @@ of the contract library does not change over time.
             m
             1
             2))
-   "procedure m method: expects 1 argument, given 2: 1 2")
+   "application: wrong number of arguments\n  procedure: m method\n  expected number of arguments: 1\n  given number of arguments: 2\n  arguments:\n   1\n   2")
 
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