diff --git a/back/models/chat.js b/back/models/chat.js
index f45d151806..5eb986a2cb 100644
--- a/back/models/chat.js
+++ b/back/models/chat.js
@@ -11,9 +11,9 @@ module.exports = Self => {
         let {message} = ctx.instance;
         if (!message) return;
 
-        const parts = message.match(/(?<=\[).*(?=])/g);
+        const parts = message.match(/(?<=\[)[a-zA-Z0-9!@#$%^&*()={};':"\\|,.<>/?\s]*(?=])/g);
         const replacedParts = parts.map(part => {
-            return part.replace(/[*()]/g, '');
+            return part.replace(/[!@#$%^&*()={};':"\\|,.<>/?]/g, '');
         });
 
         for (const [index, part] of parts.entries())