diff --git a/code/rest/matter_dao.go b/code/rest/matter_dao.go
index cbe32f0..8075198 100644
--- a/code/rest/matter_dao.go
+++ b/code/rest/matter_dao.go
@@ -648,6 +648,11 @@ func (this *MatterDao) SumSizeByUserUuidAndPath(userUuid string, path string) in
 
 }
 
+func (this *MatterDao) UpdateSize(matterUuid string, size int64) {
+	db := core.CONTEXT.GetDB().Model(&Matter{}).Where("uuid = ?", matterUuid).Update("size", size)
+	this.PanicError(db.Error)
+}
+
 func (this *MatterDao) CountByUserUuidAndPath(userUuid string, path string) int64 {
 
 	var wp = &builder.WherePair{Query: "user_uuid = ? AND path like ?", Args: []interface{}{userUuid, path + "%"}}
diff --git a/code/rest/matter_service.go b/code/rest/matter_service.go
index 82c146c..20bf68b 100644
--- a/code/rest/matter_service.go
+++ b/code/rest/matter_service.go
@@ -583,7 +583,9 @@ func (this *MatterService) ComputeRouteSize(matterUuid string, user *User, space
 
 		//when changed, we update
 		if matter.Size != size {
-			this.spaceDao.UpdateTotalSize(space.Uuid, size)
+			this.matterDao.UpdateSize(matterUuid, size)
+
+			matter.Size = size
 		}
 
 	}