@@ -533,11 +533,11 @@
 	id object1 = [[_object1 retain] autorelease];
 	id object2 = [[_object2 retain] autorelease];
 	id object3 = [[_object3 retain] autorelease];
 	id object4 = [[_object4 retain] autorelease];
 
-	OF_ENSURE(_arguments <= 4);
+	OFEnsure(_arguments <= 4);
 
 	if (_repeats && _valid) {
 		int64_t missedIntervals =
 		    -_fireDate.timeIntervalSinceNow / _interval;
 		OFTimeInterval newFireDate;