diff --git a/src/categories/recentreplies.js b/src/categories/recentreplies.js
index c0613ab5e4..d7a2a165a0 100644
--- a/src/categories/recentreplies.js
+++ b/src/categories/recentreplies.js
@@ -93,19 +93,28 @@ module.exports = function(Categories) {
 			if (category.posts.length) {
 				return;
 			}
-			var latestPost;
-			category.children.forEach(function(children) {
-				if (children.posts.length && (!latestPost || (latestPost && latestPost.timestamp < children.posts[0].timestamp))) {
-					latestPost = children.posts[0];
-				}
-			});
+			var posts = [];
+			getPostsRecursive(category, posts);
 
-			if (latestPost) {
-				category.posts = [latestPost];
+			posts.sort(function(a, b) {
+				return b.timestamp - a.timestamp;
+			});
+			if (posts.length) {
+				category.posts = [posts[0]];
 			}
 		});
 	}
 
+	function getPostsRecursive(category, posts) {
+		category.posts.forEach(function(p) {
+			posts.push(p);
+		});
+
+		category.children.forEach(function(child) {
+			getPostsRecursive(child, posts);
+		});
+	}
+
 	function assignPostsToCategories(categories, posts) {
 		categories.forEach(function(category) {
 			category.posts = posts.filter(function(post) {