diff --git a/mybatis-plus-join-core/src/main/java/com/github/yulichang/config/ConfigProperties.java b/mybatis-plus-join-core/src/main/java/com/github/yulichang/config/ConfigProperties.java
index c15b174..5c87adb 100644
--- a/mybatis-plus-join-core/src/main/java/com/github/yulichang/config/ConfigProperties.java
+++ b/mybatis-plus-join-core/src/main/java/com/github/yulichang/config/ConfigProperties.java
@@ -8,5 +8,5 @@ public class ConfigProperties {
     public static boolean subTableLogic = true;
     public static boolean msCache = true;
     public static String tableAlias = "t";
-    public static String joinPrefix = "t";
+    public static String joinPrefix = "join";
 }