diff --git a/src/routes/api.js b/src/routes/api.js
index 90f7222c6c..9beb247c09 100644
--- a/src/routes/api.js
+++ b/src/routes/api.js
@@ -295,6 +295,9 @@ var path = require('path'),
 						}
 
 						topics.getTopicsByTids(tids, 0, 0, function (err, topics) {
+							if (err){
+								return callback(err, null);
+							}
 							callback(null, topics);
 						});
 					});