diff --git a/game-server/app/services/checkParam.ts b/game-server/app/services/checkParam.ts
index 825a8486e..f0d247a61 100644
--- a/game-server/app/services/checkParam.ts
+++ b/game-server/app/services/checkParam.ts
@@ -1711,7 +1711,7 @@ function checkBoolean(...params: boolean[]) {
 
 function checkBooleanIfExist(...params: boolean[]) {
     for(let param of params) {
-        if(!isBoolean(param)) return false;
+        if(param != undefined && !isBoolean(param)) return false;
     }
     return true;
 }