diff --git a/collects/2htdp/tests-failed/key-error.rkt b/collects/2htdp/tests-failed/key-error.rkt
index 7aa1ddcbc1..805b6dabcd 100644
--- a/collects/2htdp/tests-failed/key-error.rkt
+++ b/collects/2htdp/tests-failed/key-error.rkt
@@ -17,4 +17,4 @@
                              (define hdl (regexp-match "check-with: (.*) returned" msg))
                              (unless (and hdl (cons? (regexp-match "on-tick" (second hdl))))
                                (error 'test "expected: \"on-tick\", actual: ~e" (second hdl))))))
-  (main))
\ No newline at end of file
+  (main))