diff --git a/source/client/inc/clientInt.h b/source/client/inc/clientInt.h
index fc1242f951c4ef79e63f422fdd1224167f6eaaff..2831e7a904e7fca29667fc0cb057de78fc938ccf 100644
--- a/source/client/inc/clientInt.h
+++ b/source/client/inc/clientInt.h
@@ -46,7 +46,7 @@ extern "C" {
 
 #define ERROR_MSG_BUF_DEFAULT_SIZE 512
 #define HEARTBEAT_INTERVAL         1500  // ms
-#define SYNC_ON_TOP_OF_ASYNC       0
+#define SYNC_ON_TOP_OF_ASYNC       1
 
 enum {
   RES_TYPE__QUERY = 1,