diff --git a/tampermonkey.js b/tampermonkey.js
index 68d724f..3b13c74 100644
--- a/tampermonkey.js
+++ b/tampermonkey.js
@@ -225,7 +225,7 @@
 		// 创建箭头元素
 		context.arrowElement = document.createElement('div');
 		context.arrowElement.id = PRE + "arrow";
-		context.arrowElement.className = "____ds-arrow___";
+		context.arrowElement.className = "____ds-arrow____";
 		// 将箭头元素添加到插件div中
 		context.pluginElement.append(context.arrowElement);
 	}