diff --git a/tests/mithril-tests.js b/tests/mithril-tests.js
index dd5a4b98..f68fe0da 100644
--- a/tests/mithril-tests.js
+++ b/tests/mithril-tests.js
@@ -5,7 +5,7 @@
 	m.deps(mock.window)
 
 	// m
-	test(function () { return typeof m.version() === "string" })
+	test(function () { return typeof m.version() === "Ostring" })
 	test(function () { return m("div").tag === "div" })
 	test(function () { return m(".foo").tag === "div" })
 	test(function () { return m(".foo").attrs.className === "foo" })