diff --git a/src/mainboard/aopen/dxplplusu/dsdt.asl b/src/mainboard/aopen/dxplplusu/dsdt.asl
index 095df060ff..b8bdde8663 100644
--- a/src/mainboard/aopen/dxplplusu/dsdt.asl
+++ b/src/mainboard/aopen/dxplplusu/dsdt.asl
@@ -22,10 +22,10 @@
 DefinitionBlock(
 	"dsdt.aml",
 	"DSDT",
-	0x04,           // DSDT revision: ACPI v4.0
-	"COREv4",       // OEM id
-	"COREBOOT",     // OEM table id
-	0x20111103      // OEM revision
+	0x04,		// DSDT revision: ACPI v4.0
+	"COREv4",	// OEM id
+	"COREBOOT",	// OEM table id
+	0x20111103	// OEM revision
 ) {
 
 Scope(\_SB)
diff --git a/src/mainboard/intel/xe7501devkit/dsdt.asl b/src/mainboard/intel/xe7501devkit/dsdt.asl
index 360db882c4..87dd5744e3 100644
--- a/src/mainboard/intel/xe7501devkit/dsdt.asl
+++ b/src/mainboard/intel/xe7501devkit/dsdt.asl
@@ -7,10 +7,10 @@
 DefinitionBlock(
 	"dsdt.aml",
 	"DSDT",
-	0x02,           // DSDT revision: ACPI v2.0
-	"COREv2",       // OEM id
-	"COREBOOT",     // OEM table id
-	0x20090419      // OEM revision
+	0x02,		// DSDT revision: ACPI v2.0
+	"COREv2",	// OEM id
+	"COREBOOT",	// OEM table id
+	0x20090419	// OEM revision
 )
 {
 }