1 files changed, 1 insertions, 1 deletions
diff --git a/Utils.py b/Utils.py
index 19985bd1..7c87e495 100644
--- a/Utils.py
+++ b/Utils.py
@@ -23,7 +23,7 @@ def arbitrary(s, n):
 # case mapping lowercase/uppcase logic
 def _multi_replace(s, chars1, chars2):
     for char1, char2 in zip(chars1, chars2):
-        s.replace(char1, char2)
+        s = s.replace(char1, char2)
     return s
 def irc_lower(server, s):
     if server.case_mapping == "ascii":