diff --git a/cpp/velox/shuffle/VeloxSortShuffleWriter.cc b/cpp/velox/shuffle/VeloxSortShuffleWriter.cc
index e23dd2e7ed7fc..9f93b4ae9f300 100644
--- a/cpp/velox/shuffle/VeloxSortShuffleWriter.cc
+++ b/cpp/velox/shuffle/VeloxSortShuffleWriter.cc
@@ -203,7 +203,7 @@ void VeloxSortShuffleWriter::insertRows(
     // size(RowSize) | bytes
     memcpy(currentPage_ + pageCursor_, &rowSize_[row], sizeof(RowSizeType));
     offsets[i] = pageCursor_ + sizeof(RowSizeType);
-    pageCursor_ += sizeof(RowSizeType) + rowSize_[row];
+    pageCursor_ += rowSize_[row];
     VELOX_DCHECK_LE(pageCursor_, currenPageSize_);
   }
   compact.serialize(indexRange, offsets, currentPage_);