diff --git a/src/tsdb/src/tsdbRead.c b/src/tsdb/src/tsdbRead.c
index 86ce44ad7b..b9ade9496c 100644
--- a/src/tsdb/src/tsdbRead.c
+++ b/src/tsdb/src/tsdbRead.c
@@ -665,7 +665,7 @@ static void handleDataMergeIfNeeded(STsdbQueryHandle* pQueryHandle, SCompBlock*
     if ((ASCENDING_TRAVERSE(pQueryHandle->order) &&
     ((k1 != TSKEY_INITIAL_VAL && k1 < binfo.window.skey) || (k2 != TSKEY_INITIAL_VAL && k2 < binfo.window.skey))) ||
         (!ASCENDING_TRAVERSE(pQueryHandle->order) &&
-         (((k1 != TSKEY_INITIAL_VAL && k1 > binfo.window.skey) || (k2 != TSKEY_INITIAL_VAL && k2 > binfo.window.skey))))) {
+         (((k1 != TSKEY_INITIAL_VAL && k1 > binfo.window.ekey) || (k2 != TSKEY_INITIAL_VAL && k2 > binfo.window.ekey))))) {
       // do not load file block into buffer
       int32_t step = ASCENDING_TRAVERSE(pQueryHandle->order) ? 1 : -1;