diff --git a/server/dao/resource.go b/server/dao/resource.go
index 8065800..940f3ae 100644
--- a/server/dao/resource.go
+++ b/server/dao/resource.go
@@ -97,6 +97,7 @@ func UpdateResource(r model.Resource) error {
 	tags := r.Tags
 	r.Images = nil
 	r.Tags = nil
+	r.Files = nil
 	if err := db.Save(&r).Error; err != nil {
 		return err
 	}