diff --git a/www/slide/inner.js b/www/slide/inner.js
index 1881e42b2..74254c7b5 100644
--- a/www/slide/inner.js
+++ b/www/slide/inner.js
@@ -471,6 +471,13 @@ define([
             return content;
         });
 
+        framework.onCursorUpdate(CodeMirror.setRemoteCursor);
+        framework.setCursorGetter(CodeMirror.getCursor);
+        editor.on('cursorActivity', function () {
+            if (editor._noCursorUpdate) { return; }
+            framework.updateCursor();
+        });
+
         framework.onEditableChange(function () {
             editor.setOption('readOnly', framework.isLocked() || framework.isReadOnly());
         });