diff --git a/zx.mjs b/zx.mjs
index dd3916123e..c7ff6a0bf1 100755
--- a/zx.mjs
+++ b/zx.mjs
@@ -213,6 +213,7 @@ function printUsage() {
    --quiet            : don't echo commands
    --shell=<path>     : custom shell binary
    --prefix=<command> : prefix all commands
+   --experimental     : enable new api proposals
    --version, -v      : print current zx version
 `)
 }