diff --git a/collects/mzlib/cmdline.ss b/collects/mzlib/cmdline.ss
new file mode 100644
index 0000000..4489308
--- /dev/null
+++ b/collects/mzlib/cmdline.ss
@@ -0,0 +1,5 @@
+
+
+(require-library "cmdlineu.ss")
+
+(invoke-open-unit/sig mzlib:command-line@ #f)