1 files changed, 3 insertions, 2 deletions
diff --git a/lib/backbone/summary.js b/lib/backbone/summary.js
index 009fb76..35f65e6 100644
--- a/lib/backbone/summary.js
+++ b/lib/backbone/summary.js
@@ -3,6 +3,7 @@ var util = require('util');
 var url = require('url');
 
 var location = require('../utils/location');
+var error = require('../utils/error');
 var BackboneFile = require('./file');
 
 
@@ -15,10 +16,10 @@ function TOCArticle(summary, title, ref, articles, parent) {
     this.title = title;
 
     if (ref && location.isExternal(ref)) {
-        throw new Error('SUMMARY can only contains relative locations');
+        throw error.ParsingError(new Error('SUMMARY can only contains relative locations'));
     }
     if (!title) {
-        throw new Error('SUMMARY entries should have an non-empty title');
+        throw error.ParsingError(new Error('SUMMARY entries should have an non-empty title'));
     }
 
     var parts = url.parse(ref);