diff --git a/src/obj.rs b/src/obj.rs
index ea7c2d4..de8eb3b 100644
--- a/src/obj.rs
+++ b/src/obj.rs
@@ -323,7 +323,7 @@ pub trait Obj: Debug + Display + Any + Trace {
 // BaseObjInst
 ////////////////////////////////////////////////////////////////////////////////
 
-#[derive(Debug, Default, Trace)]
+#[derive(Default, Debug, Trace)]
 pub(crate) struct BaseObjInst {
     attrs: Attrs,
     is_instantiated: bool,