diff --git a/util.py b/util.py
index 30ed98b..ebb9f72 100644
--- a/util.py
+++ b/util.py
@@ -39,6 +39,7 @@ class Util:
             "\x1d": "\\x1d",
             "\x1e": "\\x1e",
             "\x1f": "\\x1f",
+            "\x7f": "\\x7f",
         }
 
     def send(self, raw: str):