diff --git a/lib/editor/tinymce/tiny_mce/3.3.8/plugins/dragmath/js/dragmath.js b/lib/editor/tinymce/tiny_mce/3.3.8/plugins/dragmath/js/dragmath.js
index 53760b826fd..a9d69f4b0ed 100644
--- a/lib/editor/tinymce/tiny_mce/3.3.8/plugins/dragmath/js/dragmath.js
+++ b/lib/editor/tinymce/tiny_mce/3.3.8/plugins/dragmath/js/dragmath.js
@@ -12,6 +12,8 @@ var DragMathDialog = {
         tex = tex.replace('<', '&lt;');
         tex = tex.replace('>', '&gt;');
 
+        if (tinymce.isIE) {tinyMCEPopup.restoreSelection();}
+
         ed.execCommand('mceInsertContent', false, tex);
 
         tinyMCEPopup.close();