diff --git a/src/utils/irc/__init__.py b/src/utils/irc/__init__.py
index b9ebdf58..8972e800 100644
--- a/src/utils/irc/__init__.py
+++ b/src/utils/irc/__init__.py
@@ -305,4 +305,4 @@ class MessageTag(object):
         return tags[key[0]] if key else None
 
 def hostmask_match(hostmask: str, pattern: str) -> bool:
-    return fnmatch.fnmatch(hostmask, pattern)
+    return fnmatch.fnmatchcase(hostmask, pattern)