diff --git a/app/views/email_rejection_mailer/rejection.html.haml b/app/views/email_rejection_mailer/rejection.html.haml
index de29d399d32..84b040d8cbc 100644
--- a/app/views/email_rejection_mailer/rejection.html.haml
+++ b/app/views/email_rejection_mailer/rejection.html.haml
@@ -2,4 +2,4 @@
   Unfortunately, your email message to GitLab could not be processed.
 
 %p
-  = gfm @reason
+  = markdown @reason