diff --git a/lib/path.js b/lib/path.js
index 69e7992c0139d7..e0c5bcaa1c1050 100644
--- a/lib/path.js
+++ b/lib/path.js
@@ -477,9 +477,7 @@ posix.join = function() {
   var path = '';
   for (var i = 0; i < arguments.length; i++) {
     var segment = arguments[i];
-    if (typeof segment !== 'string') {
-      throw new TypeError('Arguments to path.join must be strings');
-    }
+    assertPath(segment);
     if (segment) {
       if (!path) {
         path += segment;