diff --git a/weed/storage/volume_read_write.go b/weed/storage/volume_read_write.go
index 6cca8d6cf..8e4aad809 100644
--- a/weed/storage/volume_read_write.go
+++ b/weed/storage/volume_read_write.go
@@ -55,7 +55,7 @@ func (v *Volume) Destroy() (err error) {
 	v.Close()
 	os.Remove(v.FileName() + ".dat")
 	os.Remove(v.FileName() + ".idx")
-	os.Remove(v.FileName() + ".tier")
+	os.Remove(v.FileName() + ".vif")
 	os.Remove(v.FileName() + ".sdx")
 	os.Remove(v.FileName() + ".cpd")
 	os.Remove(v.FileName() + ".cpx")
diff --git a/weed/storage/volume_tier.go b/weed/storage/volume_tier.go
index fecbd13ce..5e27562f7 100644
--- a/weed/storage/volume_tier.go
+++ b/weed/storage/volume_tier.go
@@ -21,7 +21,7 @@ func (v *Volume) maybeLoadVolumeTierInfo() bool {
 
 	v.volumeTierInfo = &volume_server_pb.VolumeTierInfo{}
 
-	tierFileName := v.FileName() + ".tier"
+	tierFileName := v.FileName() + ".vif"
 
 	if exists, canRead, _, _, _ := checkFile(tierFileName); !exists || !canRead {
 		if !exists {
@@ -88,7 +88,7 @@ func (v *Volume) LoadRemoteFile() error {
 
 func (v *Volume) SaveVolumeTierInfo() error {
 
-	tierFileName := v.FileName() + ".tier"
+	tierFileName := v.FileName() + ".vif"
 
 	if exists, _, canWrite, _, _ := checkFile(tierFileName); exists && !canWrite {
 		return fmt.Errorf("%s not writable", tierFileName)