diff --git a/src/ace/MEventEmitter.js b/src/ace/MEventEmitter.js
index 32627d20..ba853710 100644
--- a/src/ace/MEventEmitter.js
+++ b/src/ace/MEventEmitter.js
@@ -5,7 +5,10 @@
  * @license LGPLv3 <http://www.gnu.org/licenses/lgpl-3.0.txt>
  * @author Fabian Jakobs <fabian AT ajax DOT org>
  */
-require.def("ace/MEventEmitter", ["ace/ace"], function(ace) {
+
+if (!require.def) require.def = require("requireJS-node")(module);
+
+require.def("ace/MEventEmitter", ["ace/lib/lang"], function(lang) {
 
     var MEventEmitter = {}
 
@@ -30,7 +33,7 @@ require.def("ace/MEventEmitter", ["ace/ace"], function(ace) {
         if (!listeners) {
           var listeners = this.$eventRegistry[eventName] = [];
         }
-        if (ace.arrayIndexOf(listeners, callback) == -1) {
+        if (lang.arrayIndexOf(listeners, callback) == -1) {
             listeners.push(callback);
         }
     };
@@ -42,7 +45,7 @@ require.def("ace/MEventEmitter", ["ace/ace"], function(ace) {
         if (!listeners) {
           return;
         }
-        var index = ace.arrayIndexOf(listeners, callback);
+        var index = lang.arrayIndexOf(listeners, callback);
         if (index !== -1) {
             listeners.splice(index, 1);
         }
diff --git a/src/ace/ace.js b/src/ace/ace.js
index a254b454..32726e4f 100644
--- a/src/ace/ace.js
+++ b/src/ace/ace.js
@@ -5,6 +5,9 @@
  * @license LGPLv3 <http://www.gnu.org/licenses/lgpl-3.0.txt>
  * @author Fabian Jakobs <fabian AT ajax DOT org>
  */
+
+if (!require.def) require.def = require("requireJS-node")(module);
+
 require.def("ace/ace", [
         "ace/lib/core",
         "ace/lib/dom",
diff --git a/src/ace/lib/core.js b/src/ace/lib/core.js
index d957156c..679c34f0 100644
--- a/src/ace/lib/core.js
+++ b/src/ace/lib/core.js
@@ -5,6 +5,9 @@
  * @license LGPLv3 <http://www.gnu.org/licenses/lgpl-3.0.txt>
  * @author Fabian Jakobs <fabian AT ajax DOT org>
  */
+
+if (!require.def) require.def = require("requireJS-node")(module);
+
 require.def("ace/lib/core", function() {
 
     var core = {};
diff --git a/src/ace/lib/dom.js b/src/ace/lib/dom.js
index b8331c6e..a4ee8e14 100644
--- a/src/ace/lib/dom.js
+++ b/src/ace/lib/dom.js
@@ -5,6 +5,9 @@
  * @license LGPLv3 <http://www.gnu.org/licenses/lgpl-3.0.txt>
  * @author Fabian Jakobs <fabian AT ajax DOT org>
  */
+
+if (!require.def) require.def = require("requireJS-node")(module);
+
 require.def("ace/lib/dom", ["ace/lib/lang"], function(lang) {
 
     var dom = {};
diff --git a/src/ace/lib/event.js b/src/ace/lib/event.js
index 6e048445..8c4f9bf1 100644
--- a/src/ace/lib/event.js
+++ b/src/ace/lib/event.js
@@ -5,6 +5,9 @@
  * @license LGPLv3 <http://www.gnu.org/licenses/lgpl-3.0.txt>
  * @author Fabian Jakobs <fabian AT ajax DOT org>
  */
+
+if (!require.def) require.def = require("requireJS-node")(module);
+
 require.def("ace/lib/event", ["ace/lib/core"], function(core) {
 
     var event = {};
diff --git a/src/ace/lib/lang.js b/src/ace/lib/lang.js
index c17432e0..429172f9 100644
--- a/src/ace/lib/lang.js
+++ b/src/ace/lib/lang.js
@@ -5,10 +5,13 @@
  * @license LGPLv3 <http://www.gnu.org/licenses/lgpl-3.0.txt>
  * @author Fabian Jakobs <fabian AT ajax DOT org>
  */
+
+if (!require.def) require.def = require("requireJS-node")(module);
+
 require.def("ace/lib/lang", function() {
 
     var lang = {};
-    
+
     lang.stringReverse = function(string) {
         return string.split("").reverse().join("");
     };
diff --git a/src/ace/lib/oop.js b/src/ace/lib/oop.js
index 093bea2b..67f44f2a 100644
--- a/src/ace/lib/oop.js
+++ b/src/ace/lib/oop.js
@@ -5,10 +5,13 @@
  * @license LGPLv3 <http://www.gnu.org/licenses/lgpl-3.0.txt>
  * @author Fabian Jakobs <fabian AT ajax DOT org>
  */
+
+if (!require.def) require.def = require("requireJS-node")(module);
+
 require.def("ace/lib/oop", function() {
 
     var oop = {};
-    
+
     oop.inherits = function(ctor, superCtor) {
         var tempCtor = function() {};
         tempCtor.prototype = superCtor.prototype;