diff --git a/drivers/macintosh/windfarm_pm91.c b/drivers/macintosh/windfarm_pm91.c
index 764c525..bea9916 100644
--- a/drivers/macintosh/windfarm_pm91.c
+++ b/drivers/macintosh/windfarm_pm91.c
@@ -711,7 +711,7 @@
 {
 	int rc = -ENODEV;
 
-	if (machine_is_compatible("PowerMac9,1"))
+	if (of_machine_is_compatible("PowerMac9,1"))
 		rc = wf_init_pm();
 
 	if (rc == 0) {