diff --git a/src/superio/smsc/fdc37n972/superio.c b/src/superio/smsc/fdc37n972/superio.c
index 85e376d3d4..0ee9850c2e 100644
--- a/src/superio/smsc/fdc37n972/superio.c
+++ b/src/superio/smsc/fdc37n972/superio.c
@@ -15,6 +15,7 @@
 
 #include <device/device.h>
 #include <device/pnp.h>
+#include <superio/conf_mode.h>
 #include <pc80/keyboard.h>
 #include <stdlib.h>
 
@@ -43,6 +44,7 @@ static struct device_operations ops = {
 	.enable_resources = pnp_enable_resources,
 	.enable           = pnp_enable,
 	.init             = init,
+	.ops_pnp_mode     = &pnp_conf_mode_55_aa,
 };
 
 static struct pnp_info pnp_dev_info[] = {