diff --git a/src/superio/smsc/mec1308/acpi/superio.asl b/src/superio/smsc/mec1308/acpi/superio.asl
index 6794448766..cc174f96ae 100644
--- a/src/superio/smsc/mec1308/acpi/superio.asl
+++ b/src/superio/smsc/mec1308/acpi/superio.asl
@@ -246,12 +246,12 @@ Device (SIO) {
 
 		Name (_CRS, ResourceTemplate()
 		{
-			IO (Decode16, SIO_SMBX_IO0, SIO_SMBX_IO0 + 0x34, 0x01, 0x34)
+			IO (Decode16, SIO_SMBX_IO0, SIO_SMBX_IO0, 0x01, 0x34)
 		})
 
 		Name (_PRS, ResourceTemplate()
 		{
-			IO (Decode16, SIO_SMBX_IO0, SIO_SMBX_IO0 + 0x34, 0x01, 0x34)
+			IO (Decode16, SIO_SMBX_IO0, SIO_SMBX_IO0, 0x01, 0x34)
 		})
 	}
 #endif