diff --git a/lib/storage/partition.go b/lib/storage/partition.go
index 0b380dd64..5e9c59a9c 100644
--- a/lib/storage/partition.go
+++ b/lib/storage/partition.go
@@ -421,11 +421,10 @@ func (pt *partition) AddRows(rows []rawRow) {
 var isDebug = false
 
 type rawRowsShards struct {
+	shardIdx uint32
 	// Put flushDeadlineMs to the top in order to avoid unaligned memory access on 32-bit architectures:w
 	flushDeadlineMs int64
 
-	shardIdx uint32
-
 	// Shards reduce lock contention when adding rows on multi-CPU systems.
 	shards []rawRowsShard