diff --git a/src/main/java/icu/samnyan/aqua/sega/chunithm/handler/impl/GetGameMessageHandler.java b/src/main/java/icu/samnyan/aqua/sega/chunithm/handler/impl/GetGameMessageHandler.java
index 895c4cc9..7cc55421 100644
--- a/src/main/java/icu/samnyan/aqua/sega/chunithm/handler/impl/GetGameMessageHandler.java
+++ b/src/main/java/icu/samnyan/aqua/sega/chunithm/handler/impl/GetGameMessageHandler.java
@@ -40,7 +40,7 @@ public class GetGameMessageHandler implements BaseHandler {
 
         Map<String, Object> resultMap = new LinkedHashMap<>();
         resultMap.put("type", type);
-        resultMap.put("length", 0);
+        resultMap.put("length", gameMessageList.size());
         resultMap.put("gameMessageList", gameMessageList);
 
         String json = mapper.write(resultMap);