diff --git a/code/ch03-02/object/Cargo.toml b/code/ch03-02/object/Cargo.toml
index 0d17303..37c36da 100644
--- a/code/ch03-02/object/Cargo.toml
+++ b/code/ch03-02/object/Cargo.toml
@@ -1,5 +1,5 @@
 [package]
-name = "ch02-03"
+name = "ch03-02"
 version = "0.1.0"
 authors = ["Runji Wang <wangrunji0408@163.com>"]
 edition = "2018"