diff --git a/v1/tsdb/config.go b/v1/tsdb/config.go
index <HASH>..<HASH> 100644
--- a/v1/tsdb/config.go
+++ b/v1/tsdb/config.go
@@ -14,7 +14,7 @@ const (
 	DefaultEngine = "tsm1"
 
 	// DefaultIndex is the default index for new shards
-	DefaultIndex = InmemIndexName
+	DefaultIndex = TSI1IndexName
 
 	// tsdb/engine/wal configuration options
fix: Default to TSI1 index for new shards