diff --git a/matrix/plugin.ts b/matrix/plugin.ts
index ffae2f5..09bbb8c 100644
--- a/matrix/plugin.ts
+++ b/matrix/plugin.ts
@@ -65,7 +65,7 @@ class MatrixMessageAdapter implements IMessage {
   }
 
   public mention(user: IMessageTarget): string {
-    return `${user.id}:`;
+    return `<a href="https://matrix.to/#/${user.id}">${user.id}</a>`;
   }
 }