diff --git a/index.js b/index.js
index d7a4635..3bad499 100644
--- a/index.js
+++ b/index.js
@@ -100,7 +100,7 @@ var isInternal = exports.isInternal = function isInternal(url) {
     // Does it begin with a hash, meaning a link to down page?
     return true;
   }
-  ref1 = settings.internalUrls != null;
+  ref1 = settings.internalUrls;
   // Does the host match internal URLs?
   for (j = 0, len1 = ref1.length; j < len1; j++) {
     urlRegex = ref1[j];
diff --git a/package.json b/package.json
index e10bc03..937ed03 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "vue-routing-anchor-parser",
-  "version": "1.13.0",
+  "version": "1.13.1",
   "description": "A Vue directive that parses child elements for internally linking anchor tags and binds their click events to use Vue Router's push().",
   "main": "index.js",
   "scripts": {