diff --git a/lib/monaco-adapter.js b/lib/monaco-adapter.js
index 8362c23db..cec018940 100644
--- a/lib/monaco-adapter.js
+++ b/lib/monaco-adapter.js
@@ -272,7 +272,7 @@ var MonacoAdapter = function () {
    */
   MonacoAdapter.prototype.registerUndo = function registerUndo(callback) {
     if (typeof callback === 'function') {
-      this.callbacks.undo = callback;
+      this.monaco.addCommand(monaco.KeyMod.CtrlCmd | monaco.KeyCode.KEY_Z, callback);
     } else {
       throw new Error('MonacoAdapter: registerUndo method expects a '
         + 'callback function in parameter');
@@ -285,7 +285,7 @@ var MonacoAdapter = function () {
    */
   MonacoAdapter.prototype.registerRedo = function registerRedo(callback) {
     if (typeof callback === 'function') {
-      this.callbacks.redo = callback;
+      this.monaco.addCommand(monaco.KeyMod.CtrlCmd | monaco.KeyCode.KEY_Y, callback);
     } else {
       throw new Error('MonacoAdapter: registerRedo method expects a '
         + 'callback function in parameter');
@@ -498,7 +498,7 @@ var MonacoAdapter = function () {
    * @param {Operation} operation - OT.js Operation Object
    */
   MonacoAdapter.prototype.invertOperation = function invertOperation(operation) {
-    operation.invert(this.getValue());
+    operation.invert(this.monaco.getValue());
   };
 
   return MonacoAdapter;