--- a/eric6/Network/IRC/IrcChannelWidget.py	Mon Nov 01 09:29:46 2021 +0100
+++ b/eric6/Network/IRC/IrcChannelWidget.py	Wed Nov 03 19:17:00 2021 +0100
@@ -261,7 +261,7 @@
         self.editTopicButton.hide()
         
         height = self.usersList.height() + self.messages.height()
-        self.splitter.setSizes([height * 0.3, height * 0.7])
+        self.splitter.setSizes([int(height * 0.3), int(height * 0.7)])
         
         self.__initMessagesMenu()
         self.__initUsersMenu()