diff --git a/src/soc/intel/baytrail/acpi/southcluster.asl b/src/soc/intel/baytrail/acpi/southcluster.asl
index 53f181e..dacdd29 100644
--- a/src/soc/intel/baytrail/acpi/southcluster.asl
+++ b/src/soc/intel/baytrail/acpi/southcluster.asl
@@ -155,7 +155,7 @@
 	CreateDWordField (MCRS, ^LMEM._MIN, LMIN)
 	CreateDWordField (MCRS, ^LMEM._MAX, LMAX)
 	CreateDWordField (MCRS, ^LMEM._LEN, LLEN)
-	If (LPFW != Zero && LPEN == 1)
+	If (LPFW != 0 && LPEN == 1)
 	{
 		LMIN = LPFW
 		LLEN = 0x00100000
@@ -163,9 +163,9 @@
 	}
 	Else
 	{
-		LMIN = Zero
-		LMAX = Zero
-		LLEN = Zero
+		LMIN = 0
+		LMAX = 0
+		LLEN = 0
 	}
 
 	/* Update PCI resource area */