diff --git a/lib/ExpensiMark.js b/lib/ExpensiMark.js
index 81834f1c..17c84659 100644
--- a/lib/ExpensiMark.js
+++ b/lib/ExpensiMark.js
@@ -169,7 +169,7 @@ export default class ExpensiMark {
             {
                 name: 'reportMentions',
 
-                regex: /(?<![^ \n*~_])(#[\p{Ll}0-9-]{1,80})/gmiu,
+                regex: /(?<![^ \n*~_])(#[\p{Ll}0-9-]{1,80})(?![^<]*(?:<\/pre>|<\/code>))/gmiu,
                 replacement: '<mention-report>$1</mention-report>',
             },