diff --git a/source/libs/sync/src/syncEnv.c b/source/libs/sync/src/syncEnv.c
index 4213d7b45d155d7c0a8d290d326d0c79196ffd46..941478c9d68062106bf5f373bcda6e06fbffb79c 100644
--- a/source/libs/sync/src/syncEnv.c
+++ b/source/libs/sync/src/syncEnv.c
@@ -27,8 +27,6 @@ static void      syncEnvTick(void *param, void *tmrId);
 // --------------------------------
 
 int32_t syncEnvStart() {
-  sDebugFlag = 207;
-
   int32_t ret = 0;
   taosSeedRand(taosGetTimestampSec());
   gSyncEnv = doSyncEnvStart(gSyncEnv);