diff --git a/src/mainboard/biostar/a68n_5200/acpi/gpe.asl b/src/mainboard/biostar/a68n_5200/acpi/gpe.asl
index 9a8469832b..87b0d2169d 100644
--- a/src/mainboard/biostar/a68n_5200/acpi/gpe.asl
+++ b/src/mainboard/biostar/a68n_5200/acpi/gpe.asl
@@ -71,4 +71,4 @@ Scope(\_GPE) {	/* Start Scope GPE */
 		Notify(\_SB.PCI0.AZHD, 0x02) /* NOTIFY_DEVICE_WAKE */
 		Notify(\_SB.PWRB, 0x02) /* NOTIFY_DEVICE_WAKE */
 	}
-} 	/* End Scope GPE */
+}	/* End Scope GPE */
diff --git a/src/mainboard/biostar/a68n_5200/dsdt.asl b/src/mainboard/biostar/a68n_5200/dsdt.asl
index e70998921c..e2d02087cc 100644
--- a/src/mainboard/biostar/a68n_5200/dsdt.asl
+++ b/src/mainboard/biostar/a68n_5200/dsdt.asl
@@ -46,7 +46,7 @@ DefinitionBlock (
 
 	/* System Bus */
 	Scope(\_SB) { /* Start \_SB scope */
-	 	/* global utility methods expected within the \_SB scope */
+		/* global utility methods expected within the \_SB scope */
 		#include <arch/x86/acpi/globutil.asl>
 
 		/* Describe IRQ Routing mapping for this platform (within the \_SB scope) */
diff --git a/src/mainboard/biostar/am1ml/acpi/gpe.asl b/src/mainboard/biostar/am1ml/acpi/gpe.asl
index 9a8469832b..87b0d2169d 100644
--- a/src/mainboard/biostar/am1ml/acpi/gpe.asl
+++ b/src/mainboard/biostar/am1ml/acpi/gpe.asl
@@ -71,4 +71,4 @@ Scope(\_GPE) {	/* Start Scope GPE */
 		Notify(\_SB.PCI0.AZHD, 0x02) /* NOTIFY_DEVICE_WAKE */
 		Notify(\_SB.PWRB, 0x02) /* NOTIFY_DEVICE_WAKE */
 	}
-} 	/* End Scope GPE */
+}	/* End Scope GPE */
diff --git a/src/mainboard/biostar/am1ml/dsdt.asl b/src/mainboard/biostar/am1ml/dsdt.asl
index 281669c511..b8f151501e 100644
--- a/src/mainboard/biostar/am1ml/dsdt.asl
+++ b/src/mainboard/biostar/am1ml/dsdt.asl
@@ -50,7 +50,7 @@ DefinitionBlock (
 
 	/* System Bus */
 	Scope(\_SB) { /* Start \_SB scope */
-	 	/* global utility methods expected within the \_SB scope */
+		/* global utility methods expected within the \_SB scope */
 		#include <arch/x86/acpi/globutil.asl>
 
 		/* Describe IRQ Routing mapping for this platform (within the \_SB scope) */