diff --git a/src/categories.js b/src/categories.js
index f2bc20a06f..aef6e2021f 100644
--- a/src/categories.js
+++ b/src/categories.js
@@ -356,6 +356,7 @@ var async = require('async'),
 				Categories.getCategoriesData(children, next);
 			},
 			function (childrenData, next) {
+				childrenData = childrenData.filter(Boolean);
 				category.children = childrenData;
 				async.each(category.children, function(child, next) {
 					getChildrenRecursive(child, uid, next);