diff --git a/collects/setup/sig.ss b/collects/setup/sig.ss
new file mode 100644
index 0000000000..8249020cee
--- /dev/null
+++ b/collects/setup/sig.ss
@@ -0,0 +1,18 @@
+
+(module sig mzscheme
+  (import (lib "unitsig.ss"))
+  
+  (export setup-option^)
+
+  (define-signature setup-option^
+    (verbose
+     make-verbose
+     compiler-verbose
+     clean
+     make-zo
+     make-so
+     make-launchers
+     call-install
+     pause-on-errors
+     specific-collections
+     archives)))