diff --git a/collects/lazy/mz-without-promises.ss b/collects/lazy/mz-without-promises.ss
new file mode 100644
index 0000000..bdb0ea1
--- /dev/null
+++ b/collects/lazy/mz-without-promises.ss
@@ -0,0 +1,3 @@
+;; A tiny language to build our promises with no built-in interference
+(module mz-without-promises mzscheme
+  (provide (all-from-except mzscheme delay force promise?)))