diff --git a/src/client/inc/tsclient.h b/src/client/inc/tsclient.h
index ea42b0f6a339c241aefd9c16da30a6b98d3ca09b..ea49cabc4e945ac80a8178871273adf2448d39d2 100644
--- a/src/client/inc/tsclient.h
+++ b/src/client/inc/tsclient.h
@@ -229,7 +229,6 @@ typedef struct SQueryInfo {
   // TODO refactor
   STimeWindow      window;        // query time window
   SInterval        interval;
-  int32_t          tz;            // query client timezone
 
   SSqlGroupbyExpr  groupbyExpr;   // group by tags info
   SArray *         colList;       // SArray<SColumn*>
diff --git a/src/os/inc/osTime.h b/src/os/inc/osTime.h
index 99f7586f721acbc64b1c9e3e70bf2e33a6092fc8..6b209219c6c736ed95c69659a78d14037987be00 100644
--- a/src/os/inc/osTime.h
+++ b/src/os/inc/osTime.h
@@ -63,9 +63,10 @@ static FORCE_INLINE int64_t taosGetTimestamp(int32_t precision) {
 
 
 typedef struct SInterval {
-  char intervalUnit;
-  char slidingUnit;
-  char offsetUnit;
+  int32_t tz;            // query client timezone
+  char    intervalUnit;
+  char    slidingUnit;
+  char    offsetUnit;
   int64_t interval;
   int64_t sliding;
   int64_t offset;