diff --git a/src/ec/lenovo/h8/acpi/ac.asl b/src/ec/lenovo/h8/acpi/ac.asl
index 91b9d79256..43b43d7e78 100644
--- a/src/ec/lenovo/h8/acpi/ac.asl
+++ b/src/ec/lenovo/h8/acpi/ac.asl
@@ -29,7 +29,10 @@ Device(AC)
 
 	Method(_PSR, 0, NotSerialized)
 	{
-		return (HPAC)
+		Store(HPAC, Local0)
+		Store(Local0, \PWRS)
+		\PNOT()
+		return (Local0)
 	}
 
 	Method(_STA, 0, NotSerialized)
diff --git a/src/ec/lenovo/h8/acpi/ec.asl b/src/ec/lenovo/h8/acpi/ec.asl
index 944858ff8f..b6121aab1a 100644
--- a/src/ec/lenovo/h8/acpi/ec.asl
+++ b/src/ec/lenovo/h8/acpi/ec.asl
@@ -149,6 +149,7 @@ Device(EC)
 	Method(_Q26, 0, NotSerialized)
 	{
 		Notify (AC, 0x80)
+ 		\PNOT()
 	}
 
 	/* AC status change: not present */
@@ -156,6 +157,7 @@ Device(EC)
 	{
 		Notify (AC, 0x80)
 		Store(0x50, EVNT)
+ 		\PNOT()
 	}
 
 	Method(_Q2A, 0, NotSerialized)