diff --git a/src/emu/machine.c b/src/emu/machine.c
index b2ecab42591..3f0eb5a9c15 100644
--- a/src/emu/machine.c
+++ b/src/emu/machine.c
@@ -1353,10 +1353,11 @@ static running_machine * jsmess_machine;
 
 void js_main_loop()
 {
-	attotime stoptime(jsmess_machine->scheduler().time() + attotime(0,HZ_TO_ATTOSECONDS(60)));
-	while (jsmess_machine->scheduler().time()) < stoptime)
-	{
-		jsmess_machine->scheduler().timeslice();
+	device_scheduler * scheduler;
+	scheduler = &(jsmess_machine->scheduler());
+	attotime stoptime(scheduler->time() + attotime(0,HZ_TO_ATTOSECONDS(60)));
+	while (scheduler->time() < stoptime) {
+		scheduler->timeslice();
 	}
 }