diff --git a/src/first-try/cargo.md b/src/first-try/cargo.md
index 98af76b8..b035b49e 100644
--- a/src/first-try/cargo.md
+++ b/src/first-try/cargo.md
@@ -103,7 +103,7 @@ Hello, world!
 试着运行一下我们高性能的 `release` 程序：
 
 ```console
-$ ./target/release/world_hello
+$ ./target/debug/world_hello
 Hello, world!
 ```