Index: dialin/ui/hd_simulator.py
===================================================================
diff -u -r151e5a7372d787218e39163e564c8e5dbe8a35e0 -r4fef44319caea79203c9c836a57802c62409da09
--- dialin/ui/hd_simulator.py	(.../hd_simulator.py)	(revision 151e5a7372d787218e39163e564c8e5dbe8a35e0)
+++ dialin/ui/hd_simulator.py	(.../hd_simulator.py)	(revision 4fef44319caea79203c9c836a57802c62409da09)
@@ -1083,7 +1083,7 @@
                                               0,  # 9 Dialysis state
                                               )
 
-            elif self.demoSelection == 50
+            elif self.demoSelection == 50:
                 rsp_id = MsgIds.MSG_ID_HD_OP_MODE
                 rsp_payload = integer_to_bytearray(HDOpModes.MODE_STAN.value)
                 rsp_payload += integer_to_bytearray(HDStandbyStates.STANDBY_WAIT_FOR_DISINFECT_STATE.value)