diff --git a/app/src/main/res/layout/activity_config.xml b/app/src/main/res/layout/activity_config.xml
index c1c452d..24e3814 100644
--- a/app/src/main/res/layout/activity_config.xml
+++ b/app/src/main/res/layout/activity_config.xml
@@ -24,7 +24,7 @@
             android:layout_width="20dp"
             android:layout_height="20dp"
             android:layout_marginStart="10dp"
-            android:layout_marginEnd="25dp"
+            android:layout_marginEnd="20dp"
             android:src="@mipmap/ic_back"
             android:tint="@color/colorTextGray"
             android:tooltipText="返回" />