diff --git a/telethon/errors/rpc_base_errors.py b/telethon/errors/rpc_base_errors.py
index d2db5439..315e4f5d 100644
--- a/telethon/errors/rpc_base_errors.py
+++ b/telethon/errors/rpc_base_errors.py
@@ -2,6 +2,8 @@ class RPCError(Exception):
     """Base class for all Remote Procedure Call errors."""
     code = None
     message = None
+    def __reduce__(self):
+        return type(self), ()
 
 
 class InvalidDCError(RPCError):