diff --git a/executor/builder.go b/executor/builder.go
index 14b415cf5419c..daa38d65a9141 100644
--- a/executor/builder.go
+++ b/executor/builder.go
@@ -4228,7 +4228,7 @@ func buildKvRangesForIndexJoin(ctx sessionctx.Context, tableID, indexID int64, l
 		memTracker.Consume(int64(2 * cap(kvRanges[0].StartKey) * len(kvRanges)))
 	}
 	if len(tmpDatumRanges) != 0 && memTracker != nil {
-		memTracker.Consume(2 * int64(len(tmpDatumRanges)) * types.EstimatedMemUsage(tmpDatumRanges[0].LowVal, len(tmpDatumRanges)))
+		memTracker.Consume(2 * types.EstimatedMemUsage(tmpDatumRanges[0].LowVal, len(tmpDatumRanges)))
 	}
 	if cwc == nil {
 		sort.Slice(kvRanges, func(i, j int) bool {