diff --git a/FMathEditor/dialogs/dialog.js b/FMathEditor/dialogs/dialog.js
index 7c7ba805..a5ff4ba2 100644
--- a/FMathEditor/dialogs/dialog.js
+++ b/FMathEditor/dialogs/dialog.js
@@ -10,7 +10,7 @@ var dialog = CKEDITOR.dialog.add( 'FMathEditorDialog', function( editor ) {
                 elements: [
                     {
                         type: 'html',
-                        html: '<iframe id="editorIFrame" style="width:1024px;height:500px" src="'+ this.fmathPath +'FMathEditor/editor/onlyEditor.html"></iframe>'
+                        html: '<iframe id="editorIFrame" style="width:1024px;height:500px" src="'+ this.fmathPath +'editor/onlyEditor.html"></iframe>'
                     }
                 ]
             }