diff --git a/standard/appspawn_process.c b/standard/appspawn_process.c
index 6a26c352fae4ce8df04e5faab0b4d84f7b042247..81e5256110b7ed85679b32be9ef8c39c788fdd9e 100644
--- a/standard/appspawn_process.c
+++ b/standard/appspawn_process.c
@@ -277,7 +277,7 @@ static int ColdStartApp(struct AppSpawnContent_ *content, AppSpawnClient *client
         argv[FD_INDEX] = strdup(buffer);
         APPSPAWN_CHECK(argv[FD_INDEX] != NULL, break, "Invalid strdup");
 
-        len = sprintf_s(param + startLen, originLen - startLen, "%u:%u:%u:%d",
+        len = sprintf_s(param + startLen, originLen - startLen, "%u:%u:%u:%u",
             ((AppSpawnClientExt *)client)->client.id,
             appProperty->uid, appProperty->gid, appProperty->gidCount);
         APPSPAWN_CHECK(len > 0 && (len < (originLen - startLen)), break, "Invalid to format");