diff --git a/src/superio/smsc/lpc47m10x/lpc47m10x.h b/src/superio/smsc/lpc47m10x/lpc47m10x.h
index 4c78d9e632..535a4148cb 100644
--- a/src/superio/smsc/lpc47m10x/lpc47m10x.h
+++ b/src/superio/smsc/lpc47m10x/lpc47m10x.h
@@ -30,7 +30,7 @@
 #define LPC47M10X2_KBC              7   /* Keyboard & Mouse */
 #define LPC47M10X2_GAME             9   /* GAME */
 #define LPC47M10X2_PME             10   /* PME  reg*/
-#define LPC47M10X2_MPU             10   /* MPE -- who knows --   reg*/ // FIXME
+#define LPC47M10X2_MPU             11   /* MPU-401 MIDI */
 
 #define LPC47M10X2_MAX_CONFIG_REGISTER	0x5F
 
diff --git a/src/superio/smsc/lpc47m10x/superio.c b/src/superio/smsc/lpc47m10x/superio.c
index 0be8742e45..3d6a8ed1d7 100644
--- a/src/superio/smsc/lpc47m10x/superio.c
+++ b/src/superio/smsc/lpc47m10x/superio.c
@@ -65,6 +65,7 @@ static struct pnp_info pnp_dev_info[] = {
 	{ &ops, LPC47M10X2_SP1, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
 	{ &ops, LPC47M10X2_SP2, PNP_IO0 | PNP_IRQ0, {0x07f8, 0}, },
 	{ &ops, LPC47M10X2_KBC, PNP_IO0 | PNP_IO1 | PNP_IRQ0 | PNP_IRQ1, {0x07ff, 0}, {0x07ff, 4}, },
+	{ &ops, LPC47M10X2_PME, PNP_IO0, { 0x0f80, 0 }, },
 };
 
 /**