diff --git a/cmd/tools/migration/backend/etcd220.go b/cmd/tools/migration/backend/etcd220.go
index 8ad186e488..46928fee65 100644
--- a/cmd/tools/migration/backend/etcd220.go
+++ b/cmd/tools/migration/backend/etcd220.go
@@ -3,6 +3,8 @@ package backend
 import (
 	"fmt"
 
+	"github.com/milvus-io/milvus/internal/metastore/kv/querycoord"
+
 	"github.com/milvus-io/milvus/cmd/tools/migration/configs"
 
 	"github.com/milvus-io/milvus/internal/util"
@@ -128,8 +130,13 @@ func (b etcd220) Clean() error {
 		rootcoord.FieldMetaPrefix,
 		rootcoord.AliasMetaPrefix,
 
+		rootcoord.SnapshotPrefix,
+
 		util.FieldIndexPrefix,
 		util.SegmentIndexPrefix,
+
+		querycoord.CollectionLoadInfoPrefix,
+		querycoord.PartitionLoadInfoPrefix,
 	}
 	for _, prefix := range prefixes {
 		if err := b.CleanWithPrefix(prefix); err != nil {