diff --git a/src/services/GameLogic.ts b/src/services/GameLogic.ts
index 5fbbc60..44d2c65 100644
--- a/src/services/GameLogic.ts
+++ b/src/services/GameLogic.ts
@@ -80,7 +80,7 @@ export async function startGame(roomId: string, sessionId: string) {
 export async function sendOneQuestion(history: any) {
   const roomId = history.room
   new Schedule().stopSchedule(history.scheduleKey)
-  if (history.current >= history.questions.length) {
+  if (history.current >= history.questions.size) {
     console.log('match over')
     history.status = 9
     await history.save()