diff --git a/src/compile/thunk.rs b/src/compile/thunk.rs
index 325b4cc..7d6bd20 100644
--- a/src/compile/thunk.rs
+++ b/src/compile/thunk.rs
@@ -221,6 +221,7 @@ impl Flatten {
 
 #[test]
 fn test_flatten_thunk() {
+    use crate::obj::prelude::*;
     let init_body = vec![
         Inst::PushSym(Sym::new(0)),
         Inst::PushSym(Sym::new(1)),