diff --git a/src/ec/quanta/ene_kb3940q/acpi/ec.asl b/src/ec/quanta/ene_kb3940q/acpi/ec.asl
index 0195a31b07..8d3ff81992 100644
--- a/src/ec/quanta/ene_kb3940q/acpi/ec.asl
+++ b/src/ec/quanta/ene_kb3940q/acpi/ec.asl
@@ -116,7 +116,7 @@ Device (EC0)
 		BCNT, 8,        // SMBus Block Count                    ; E4h
 	}
 
-	Method (_CRS, 0, NotSerialized)
+	Method (_CRS, 0, Serialized)
 	{
 		Name (ECMD, ResourceTemplate()
 		{