diff -r 3b920d1fe81b -r f31f062703a2 runtime/PyroServer.py
--- a/runtime/PyroServer.py	Thu Sep 09 21:52:27 2021 +0200
+++ b/runtime/PyroServer.py	Fri Sep 10 14:42:46 2021 +0200
@@ -68,7 +68,7 @@
             others = []
             if not sys.platform.startswith('win'):
                 self.piper, self.pipew = os.pipe()
-                others.append = self.piper
+                others.append(self.piper)
 
             self.daemon.requestLoop(others=others, callback=lambda x: None)
             self.piper, self.pipew = None, None