@@ -52,11 +52,11 @@
 {
 	if (_initialized) {
 		int error = OFPlainMutexFree(&_mutex);
 
 		if (error != 0) {
-			OF_ENSURE(error == EBUSY);
+			OFEnsure(error == EBUSY);
 
 			@throw [OFStillLockedException exceptionWithLock: self];
 		}
 	}