diff --git a/docs/components/services/mailer.md b/docs/components/services/mailer.md
index 978042aa73d4ea9bd68d8aae47a1aa1558cf3998..bb3471d5ee5102947f4dead0054ba5bc61989233 100644
--- a/docs/components/services/mailer.md
+++ b/docs/components/services/mailer.md
@@ -39,7 +39,7 @@ npm install -g mjml
 
 It uses its own file extention (`.mjml`) and syntax that abstracts the whole layer of complexity related to responsive email design. Once the template done and the content updated we can convert the mjml syntax to html using the following command:
 
-```
+```bash
 mjml my-file.mjml -o my-file.html
 ```