diff --git a/pages/04.other/useful-commands/default.en.md b/pages/04.other/useful-commands/default.en.md
index 7e73943..0bb4546 100644
--- a/pages/04.other/useful-commands/default.en.md
+++ b/pages/04.other/useful-commands/default.en.md
@@ -1,5 +1,5 @@
 ---
-title: "Useful Commands"
+title: 'Useful Commands'
 visible: true
 ---
 
@@ -10,7 +10,7 @@ visible: true
 ### Splitting PDF files
 
 ```sh
-$ convert -density 600 {INPUT.PDF} -crop 50x100% +repage {OUT.PDF}
+\$ convert -density 600 {INPUT.PDF} -crop 50x100% +repage {OUT.PDF}
 ```
 
 ```