diff --git a/src/main/js/index.mjs b/src/main/js/index.mjs
index 7853335..b72e561 100644
--- a/src/main/js/index.mjs
+++ b/src/main/js/index.mjs
@@ -30,6 +30,9 @@ $.raw = async (...args) => $.o({quote: v => v})(...args)
 // https://github.com/google/zx/pull/134
 $.silent = async (...args) => quiet($(...args))
 
+// https://github.com/google/zx/blob/c73ccb468cfd2340fb296e17a543eb2399b449ec/src/core.ts#L174
+$.cwd = process.cwd()
+
 $.o = $.opt =
   (opts) =>
     (...args) =>
diff --git a/src/test/js/test.mjs b/src/test/js/test.mjs
index 9930ff0..71e00ec 100644
--- a/src/test/js/test.mjs
+++ b/src/test/js/test.mjs
@@ -144,3 +144,8 @@ import {$, semver, createHook, ip, tempy, tcping, sleep, ctx} from '../../main/j
     $.verbose = 2
   })
 }
+
+// $.cwd
+{
+  assert.ok($.cwd === process.cwd())
+}