diff --git a/12.which-are-the-commonly-used-modules.md b/12.which-are-the-commonly-used-modules.md
index 150a715..13269ce 100644
--- a/12.which-are-the-commonly-used-modules.md
+++ b/12.which-are-the-commonly-used-modules.md
@@ -253,7 +253,7 @@
      file:
        path: /home/docker/.vimrc
        state: touch
-	 		mode: "u=rw,g=r,o=r"
+       mode: "u=rw,g=r,o=r"
      when: stat_vimrc.stat.exists == false
    ```