--- a/eric6/Network/IRC/IrcWidget.py	Mon Nov 01 09:29:46 2021 +0100
+++ b/eric6/Network/IRC/IrcWidget.py	Wed Nov 03 19:17:00 2021 +0100
@@ -72,7 +72,7 @@
             self.channelsWidget.setTabPosition(QTabWidget.TabPosition.South)
         
         height = self.height()
-        self.splitter.setSizes([height * 0.6, height * 0.4])
+        self.splitter.setSizes([int(height * 0.6), int(height * 0.4)])
         
         self.__channelList = []
         self.__channelTypePrefixes = ""