diff --git a/collects/tests/typed-scheme/nightly-run.rkt b/collects/tests/typed-scheme/nightly-run.rkt
index a2fbedf4..cc2059d7 100644
--- a/collects/tests/typed-scheme/nightly-run.rkt
+++ b/collects/tests/typed-scheme/nightly-run.rkt
@@ -4,4 +4,5 @@
 (define-runtime-path run "run.ss")
 (if (eq? 'cgc (system-type 'gc))
   (printf "Running under CGC => skipping tests\n")
-  (dynamic-require run #f))
+  (parameterize ([current-command-line-arguments '#("--nightly")])
+    (dynamic-require run #f)))