diff --git a/game-service/src/main/java/awesome/group/game/service/bo/citrus/UserBo.java b/game-service/src/main/java/awesome/group/game/service/bo/citrus/UserBo.java
index 6177af7..f9a29b3 100644
--- a/game-service/src/main/java/awesome/group/game/service/bo/citrus/UserBo.java
+++ b/game-service/src/main/java/awesome/group/game/service/bo/citrus/UserBo.java
@@ -73,7 +73,7 @@ public class UserBo {
         }
         int mid = str.length() / 2;
         StringBuilder sb = new StringBuilder(str);
-        sb.replace(mid, sb.length(), "x".repeat(mid));
+        sb.replace(mid, sb.length(), "*".repeat(mid));
         return sb.toString();
     }