diff --git a/irc/client.py b/irc/client.py
index 8e16700..f99fce9 100644
--- a/irc/client.py
+++ b/irc/client.py
@@ -411,7 +411,10 @@ def _handle_message(self, arguments, command, source, tags):
     def _handle_other(self, arguments, command, source, tags):
         target = None
         if command == "quit":
-            arguments = [arguments[0]]
+            if len(arguments) > 0:
+                arguments = [arguments[0]]
+            else:
+                arguments = [""]
         elif command == "ping":
             target = arguments[0]
         else: