diff --git a/op-guide/offline-ansible-deployment.md b/op-guide/offline-ansible-deployment.md
index e2c91cd3d8067..4657528828c81 100644
--- a/op-guide/offline-ansible-deployment.md
+++ b/op-guide/offline-ansible-deployment.md
@@ -61,7 +61,7 @@ Currently, the TiDB 2.0 GA version and the master version are compatible with An
     ```
     # tar -xzvf ansible-2.5.0-pip.tar.gz
     # cd ansible-2.5.0-pip/
-    # chmod install_ansible.sh
+    # chmod u+x install_ansible.sh
     # ./install_ansible.sh
     ```