diff --git a/14-shared-library.md b/14-shared-library.md
index d68cd88..704591e 100644
--- a/14-shared-library.md
+++ b/14-shared-library.md
@@ -79,7 +79,6 @@ Configure the shared library under _Manage Jenkins > Configure System_.
 The directory structure should look as shown below.
 
 ```
-$ tree
 .
 ├── Jenkinsfile
 ├── go.mod