diff --git a/src/route/util.ts b/src/route/util.ts
index 9eb12df..41687bd 100644
--- a/src/route/util.ts
+++ b/src/route/util.ts
@@ -2,8 +2,9 @@
 import {Context} from 'koa';
 
 
-export function ParseQueryNumber(s: string|undefined): number| undefined{
+export function ParseQueryNumber(s: string[] | string|undefined): number| undefined{
     if(s === undefined) return undefined;
+    else if(typeof s === "object") return undefined;
     else return Number.parseInt(s);
 }
 export function ParseQueryArray(s: string[]|string|undefined){
@@ -11,19 +12,20 @@ export function ParseQueryArray(s: string[]|string|undefined){
     const r = s instanceof Array ? s : [s];
     return r.map(x=>decodeURIComponent(x));
 }
-export function ParseQueryArgString(s: string|undefined){
+export function ParseQueryArgString(s: string[]|string|undefined){
+    if(typeof s === "object") return undefined;
     return s === undefined ? s : decodeURIComponent(s);
 }
-export function ParseQueryBoolean(s: string|undefined): [boolean,boolean|undefined]{
+export function ParseQueryBoolean(s: string[] |string|undefined): [boolean,boolean|undefined]{
     let value:boolean|undefined;
+
     if(s === "true")
         value = true;
     else if(s === "false")
         value = false;
     else if(s === undefined)
         value = undefined;
-    else
-        return [false,undefined]
+    else return [false,undefined]
     return [true,value]
 }