diff --git a/src/model/nodes/version.js b/src/model/nodes/version.js
index a7af570..a4b90d1 100644
--- a/src/model/nodes/version.js
+++ b/src/model/nodes/version.js
@@ -61,9 +61,13 @@ VersionNode.prototype.setSource = function (version) {
             content: version.readme
         },
         regExp = /^https?:\/\/(.+?)\/(.+?)\/(.+?)/,
-        parsedRepo = version.url.match(regExp),
+        parsedRepo,
         repo;
 
+    if (version.url) {
+        parsedRepo = version.url.match(regExp);
+    }
+
     if (parsedRepo) {
         repo = {
             host: parsedRepo[1],