diff --git a/WangEditorWidget.php b/WangEditorWidget.php
index b1d86a1..f9d6595 100644
--- a/WangEditorWidget.php
+++ b/WangEditorWidget.php
@@ -44,7 +44,7 @@ public function run()
         if ($this->hasModel()) {
             echo Html::activeHiddenInput($this->model, $this->attribute, $this->options);
             $attribute = $this->attribute;
-            $content = $this->model->$attribute;
+            $content = Html::getAttributeValue($this->model, $attribute);
         } else {
             echo Html::hiddenInput($this->name, $this->value, $this->options);
             $content = $this->value;
@@ -84,4 +84,9 @@ public function registerJs()
         }
         $view->registerJs($js);
     }
-}
\ No newline at end of file
+
+    protected function registerFullScreenAsset()
+    {
+
+    }
+}