diff --git a/src/main.cpp b/src/main.cpp
index 29a68ea7..0d2484e2 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -67,6 +67,10 @@ int main(int argc, char* argv[]) {
 	gPlatform = v8::platform::CreateDefaultPlatform();
 	v8::V8::InitializePlatform(gPlatform);
 	v8::V8::Initialize();
+
+	const char* kAsyncAwait = "--harmony-async-await";
+	v8::V8::SetFlagsFromString(kAsyncAwait, std::strlen(kAsyncAwait));
+
 	v8::V8::SetFlagsFromCommandLine(&argc, argv, true);
 
 	bool isChild = false;
diff --git a/tests/10-await b/tests/10-await
new file mode 100644
index 00000000..a6cd986d
--- /dev/null
+++ b/tests/10-await
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+cat > test.js << EOF
+print("hi");
+
+function foobar() {
+	return new Promise(function (resolve, reject) {
+		resolve(10);
+	});
+}
+
+async function huh() {
+	let v = await foobar();
+	print("v => " + v);
+	if (v != 10) {
+		throw new Error("nope");
+	}
+}
+
+huh();
+EOF
+
+$TILDEFRIENDS test.js