diff --git a/src/posts/delete.js b/src/posts/delete.js
index 40b6554b6f..e28f3f8e36 100644
--- a/src/posts/delete.js
+++ b/src/posts/delete.js
@@ -24,15 +24,15 @@ module.exports = function(Posts) {
 			},
 			function (_post, next) {
 				postData = _post;
-				topics.getTopicField(_post.tid, 'cid', next);
+				topics.getTopicFields(_post.tid, ['tid', 'cid', 'pinned'], next);
 			},
-			function (cid, next) {
+			function (topicData, next) {
 				async.parallel([
 					function(next) {
-						updateTopicTimestamp(postData.tid, next);
+						updateTopicTimestamp(topicData, next);
 					},
 					function(next) {
-						db.sortedSetRemove('cid:' + cid + ':pids', pid, next);
+						db.sortedSetRemove('cid:' + topicData.cid + ':pids', pid, next);
 					},
 					function(next) {
 						Posts.dismissFlag(pid, next);
@@ -40,10 +40,11 @@ module.exports = function(Posts) {
 					function(next) {
 						topics.updateTeaser(postData.tid, next);
 					}
-				], function(err) {
-					plugins.fireHook('action:post.delete', pid);
-					next(err, postData);
-				});
+				], next);
+			},
+			function (results, next) {
+				plugins.fireHook('action:post.delete', pid);
+				next(null, postData);
 			}
 		], callback);
 	};
@@ -62,45 +63,56 @@ module.exports = function(Posts) {
 			},
 			function (_post, next) {
 				postData = _post;
-				topics.getTopicField(_post.tid, 'cid', next);
+				topics.getTopicFields(_post.tid, ['tid', 'cid', 'pinned'], next);
 			},
-			function (cid, next) {
-				postData.cid = cid;
+			function (topicData, next) {
+				postData.cid = topicData.cid;
 				async.parallel([
 					function(next) {
-						updateTopicTimestamp(postData.tid, next);
+						updateTopicTimestamp(topicData, next);
 					},
 					function(next) {
-						db.sortedSetAdd('cid:' + cid + ':pids', postData.timestamp, pid, next);
+						db.sortedSetAdd('cid:' + topicData.cid + ':pids', postData.timestamp, pid, next);
 					},
 					function(next) {
 						topics.updateTeaser(postData.tid, next);
 					}
-				], function(err) {
-					plugins.fireHook('action:post.restore', _.clone(postData));
-					next(err, postData);
-				});
+				], next);
+			},
+			function (results, next) {
+				plugins.fireHook('action:post.restore', _.clone(postData));
+				next(null, postData);
 			}
 		], callback);
 	};
 
-	function updateTopicTimestamp(tid, callback) {
-		topics.getLatestUndeletedPid(tid, function(err, pid) {
-			if(err || !pid) {
-				return callback(err);
-			}
-
-			Posts.getPostField(pid, 'timestamp', function(err, timestamp) {
-				if (err) {
-					return callback(err);
+	function updateTopicTimestamp(topicData, callback) {
+		var timestamp;
+		async.waterfall([
+			function (next) {
+				topics.getLatestUndeletedPid(topicData.tid, next);
+			},
+			function (pid, next) {
+				if (!parseInt(pid, 10)) {
+					return callback();
 				}
-
-				if (timestamp) {
-					return topics.updateTimestamp(tid, timestamp, callback);
+				Posts.getPostField(pid, 'timestamp', next);
+			},
+			function (_timestamp, next) {
+				timestamp = _timestamp;
+				if (!parseInt(timestamp, 10)) {
+					return callback();
 				}
-				callback();
-			});
-		});
+				topics.updateTimestamp(topicData.tid, timestamp, next);
+			},
+			function (next) {
+				if (parseInt(topicData.pinned, 10) !== 1) {
+					db.sortedSetAdd('cid:' + topicData.cid + ':tids', timestamp, topicData.tid, next);
+				} else {
+					next();
+				}
+			}
+		], callback);
 	}
 
 	Posts.purge = function(pid, uid, callback) {
@@ -160,7 +172,7 @@ module.exports = function(Posts) {
 					return callback(err);
 				}
 
-				topics.getTopicFields(postData.tid, ['cid'], function(err, topicData) {
+				topics.getTopicFields(postData.tid, ['tid', 'cid', 'pinned'], function(err, topicData) {
 					if (err) {
 						return callback(err);
 					}
@@ -178,6 +190,9 @@ module.exports = function(Posts) {
 						function(next) {
 							topics.updateTeaser(postData.tid, next);
 						},
+						function (next) {
+							updateTopicTimestamp(topicData, next);
+						},
 						function(next) {
 							db.sortedSetIncrBy('cid:' + topicData.cid + ':tids:posts', -1, postData.tid, next);
 						},