diff --git a/electrum/lnutil.py b/electrum/lnutil.py
index 8a4878746..bba793321 100644
--- a/electrum/lnutil.py
+++ b/electrum/lnutil.py
@@ -362,6 +362,16 @@ class NoPathFound(PaymentFailure):
     def __str__(self):
         return _('No path found')
 
+
+class LNProtocolError(Exception):
+    """Raised in peer methods to trigger an error message."""
+
+
+class LNProtocolWarning(Exception):
+    """Raised in peer methods to trigger a warning message."""
+
+
+
 # TODO make some of these values configurable?
 REDEEM_AFTER_DOUBLE_SPENT_DELAY = 30