diff --git a/code/ch01-02/src/object/handle.rs b/code/ch01-02/src/object/handle.rs
index 592282d..a36d3df 100644
--- a/code/ch01-02/src/object/handle.rs
+++ b/code/ch01-02/src/object/handle.rs
@@ -20,7 +20,8 @@ impl Handle {
 #[cfg(test)]
 mod tests {
     use super::*;
-
+    use crate::object::DummyObject;
+    
     #[test]
     fn new_obj_handle() {
         let obj = DummyObject::new();
diff --git a/code/ch01-03/src/object/handle.rs b/code/ch01-03/src/object/handle.rs
index 58a0b47..328fddf 100644
--- a/code/ch01-03/src/object/handle.rs
+++ b/code/ch01-03/src/object/handle.rs
@@ -20,6 +20,7 @@ impl Handle {
 #[cfg(test)]
 mod tests {
     use super::*;
+    use crate::object::DummyObject;
 
     #[test]
     fn new_obj_handle() {