Fix error when summary contains entry without ref

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/models/summary.js b/lib/models/summary.js
index 8a4afc7..70f0535 100644
--- a/lib/models/summary.js
+++ b/lib/models/summary.js
@@ -74,7 +74,12 @@ Summary.prototype.getByLevel = function(level) {
 */
 Summary.prototype.getByPath = function(filePath) {
     return this.getArticle(function(article) {
-        return (LocationUtils.areIdenticalPaths(article.getPath(), filePath));
+        var articlePath = article.getPath();
+
+        return (
+            articlePath &&
+            LocationUtils.areIdenticalPaths(articlePath, filePath)
+        );
     });
 };