diff --git a/src/postTools.js b/src/postTools.js
index 3c5a9e53ca..103c82ee4b 100644
--- a/src/postTools.js
+++ b/src/postTools.js
@@ -18,12 +18,6 @@ var winston = require('winston'),
 
 (function(PostTools) {
 
-	PostTools.isMain = function(pid, tid, callback) {
-		topics.getTopicField(tid, 'mainPid', function(err, mainPid) {
-			callback(err, parseInt(pid, 10) === parseInt(mainPid, 10));
-		});
-	};
-
 	PostTools.edit = function(uid, pid, title, content, options, callback) {
 		options = options || {};
 
@@ -57,7 +51,7 @@ var winston = require('winston'),
 			async.parallel({
 				topic: function(next) {
 					var tid = postData.tid;
-					PostTools.isMain(pid, tid, function(err, isMainPost) {
+					posts.isMain(pid, function(err, isMainPost) {
 						if (err) {
 							return next(err);
 						}
diff --git a/src/posts.js b/src/posts.js
index 1191e5f9f1..519bb5453a 100644
--- a/src/posts.js
+++ b/src/posts.js
@@ -476,6 +476,17 @@ var async = require('async'),
 		});
 	};
 
+	Posts.isMain = function(pid, callback) {
+		Posts.getPostField(pid, 'tid', function(err, tid) {
+			if (err) {
+				return callback(err);
+			}
+			topics.getTopicField(tid, 'mainPid', function(err, mainPid) {
+				callback(err, parseInt(pid, 10) === parseInt(mainPid, 10));
+			});
+		});
+	};
+
 	Posts.updatePostVoteCount = function(pid, voteCount, callback) {
 		async.parallel([
 			function(next) {
diff --git a/src/privileges/posts.js b/src/privileges/posts.js
index 23e8740a95..e932819563 100644
--- a/src/privileges/posts.js
+++ b/src/privileges/posts.js
@@ -79,7 +79,12 @@ module.exports = function(privileges) {
 	};
 
 	privileges.posts.canMove = function(pid, uid, callback) {
-		isAdminOrMod(pid, uid, callback);
+		posts.isMain(pid, function(err, isMain) {
+			if (err || isMain) {
+				return callback(err || new Error('[[error:cant-move-mainpost]]'));
+			}
+			isAdminOrMod(pid, uid, callback);
+		});
 	};
 
 	function isAdminOrMod(pid, uid, callback) {
diff --git a/src/socket.io/modules.js b/src/socket.io/modules.js
index d2877a3d43..9a44ab1927 100644
--- a/src/socket.io/modules.js
+++ b/src/socket.io/modules.js
@@ -62,7 +62,7 @@ SocketModules.composer.push = function(socket, pid, callback) {
 				topics.getTopicTags(postData.tid, next);
 			},
 			isMain: function(next) {
-				postTools.isMain(pid, postData.tid, next);
+				posts.isMain(pid, next);
 			}
 		}, function(err, results) {
 			if(err) {
@@ -82,15 +82,9 @@ SocketModules.composer.push = function(socket, pid, callback) {
 };
 
 SocketModules.composer.editCheck = function(socket, pid, callback) {
-	posts.getPostField(pid, 'tid', function(err, tid) {
-		if (err) {
-			return callback(err);
-		}
-
-		postTools.isMain(pid, tid, function(err, isMain) {
-			callback(err, {
-				titleEditable: isMain
-			});
+	posts.isMain(pid, function(err, isMain) {
+		callback(err, {
+			titleEditable: isMain
 		});
 	});
 };
diff --git a/src/socket.io/topics.js b/src/socket.io/topics.js
index d5d452b5b6..93cf8916c4 100644
--- a/src/socket.io/topics.js
+++ b/src/socket.io/topics.js
@@ -233,7 +233,7 @@ SocketTopics.movePost = function(socket, data, callback) {
 		return callback(new Error('[[error:invalid-data]]'));
 	}
 
-	privileges.posts.canMove(data.tid, socket.uid, function(err, canMove) {
+	privileges.posts.canMove(data.pid, socket.uid, function(err, canMove) {
 		if (err || !canMove) {
 			return callback(err || new Error('[[error:no-privileges]]'));
 		}
diff --git a/src/topics/posts.js b/src/topics/posts.js
index d943ca169e..b787c3956c 100644
--- a/src/topics/posts.js
+++ b/src/topics/posts.js
@@ -93,7 +93,7 @@ module.exports = function(Topics) {
 				postData[i].downvoted = results.voteData[i].downvoted;
 				postData[i].votes = postData[i].votes || 0;
 				postData[i].display_moderator_tools = results.privileges[i].editable;
-				postData[i].display_move_tools = results.privileges[i].move;
+				postData[i].display_move_tools = results.privileges[i].move && postData[i].index !== 0;
 				postData[i].selfPost = parseInt(uid, 10) === parseInt(postData[i].uid, 10);
 
 				if(postData[i].deleted && !results.privileges[i].view_deleted) {