diff --git a/public/language/en/topic.json b/public/language/en/topic.json
index 2e6bbc6f2a..8e368a12a4 100644
--- a/public/language/en/topic.json
+++ b/public/language/en/topic.json
@@ -18,6 +18,7 @@
 	"link": "Link",
 
 	"thread_tools.title": "Thread Tools",
+	"thread_tools.markAsUnreadForAll": "Mark Unread",
 	"thread_tools.pin": "Pin Thread",
 	"thread_tools.lock": "Lock Thread",
 	"thread_tools.move": "Move Thread",
diff --git a/public/src/forum/topic.js b/public/src/forum/topic.js
index e37cd7a095..d6936d4e68 100644
--- a/public/src/forum/topic.js
+++ b/public/src/forum/topic.js
@@ -88,6 +88,15 @@ define(['composer'], function(composer) {
 					return false;
 				});
 
+				$('.markAsUnreadForAll').on('click', function() {
+					socket.emit('topics.markAsUnreadForAll', tid, function(err) {
+						if(err) {
+							return app.alertError(err.message);
+						}
+					});
+					return false;
+				})
+
 				moveThreadModal.on('shown.bs.modal', function() {
 
 					var loadingEl = document.getElementById('categories-loading');
diff --git a/public/templates/topic.tpl b/public/templates/topic.tpl
index f445fe7a3f..f8d2308d83 100644
--- a/public/templates/topic.tpl
+++ b/public/templates/topic.tpl
@@ -146,6 +146,7 @@
 					<div class="btn-group thread-tools hide">
 						<button class="btn btn-default dropdown-toggle" data-toggle="dropdown" type="button">[[topic:thread_tools.title]] <span class="caret"></span></button>
 						<ul class="dropdown-menu">
+							<li><a href="#" class="markAsUnreadForAll"><i class="fa fa-inbox"></i> [[topic:thread_tools.markAsUnreadForAll]]</a></li>
 							<li><a href="#" class="pin_thread"><i class="fa fa-thumb-tack"></i> [[topic:thread_tools.pin]]</a></li>
 							<li><a href="#" class="lock_thread"><i class="fa fa-lock"></i> [[topic:thread_tools.lock]]</a></li>
 							<li class="divider"></li>
@@ -171,6 +172,7 @@
 			<div class="btn-group thread-tools hide">
 				<button class="btn btn-default dropdown-toggle" data-toggle="dropdown" type="button">[[topic:thread_tools.title]] <span class="caret"></span></button>
 				<ul class="dropdown-menu">
+					<li><a href="#" class="markAsUnreadForAll"><i class="fa fa-inbox"></i> [[topic:thread_tools.markAsUnreadForAll]]</a></li>
 					<li><a href="#" class="pin_thread"><i class="fa fa-thumb-tack"></i> [[topic:thread_tools.pin]]</a></li>
 					<li><a href="#" class="lock_thread"><i class="fa fa-lock"></i> [[topic:thread_tools.lock]]</a></li>
 					<li class="divider"></li>
diff --git a/src/socket.io/topics.js b/src/socket.io/topics.js
index d79bb1b8a6..4b8496287a 100644
--- a/src/socket.io/topics.js
+++ b/src/socket.io/topics.js
@@ -83,6 +83,16 @@ SocketTopics.markAllRead = function(socket, data, callback) {
 	});
 };
 
+SocketTopics.markAsUnreadForAll = function(socket, tid, callback) {
+	topics.markAsUnreadForAll(tid, function(err) {
+		if(err) {
+			return callback(err);
+		}
+		topics.pushUnreadCount();
+		callback();
+	});
+}
+
 function doTopicAction(action, socket, tid, callback) {
 	if(!tid) {
 		return callback(new Error('Invalid tid'));