diff --git a/src/mainboard/google/cyan/acpi/codec_maxim.asl b/src/mainboard/google/cyan/acpi/codec_maxim.asl
index 81bec16ea5..b412551a4a 100644
--- a/src/mainboard/google/cyan/acpi/codec_maxim.asl
+++ b/src/mainboard/google/cyan/acpi/codec_maxim.asl
@@ -35,7 +35,7 @@ Scope (\_SB.PCI0.I2C2)
 			}
 		})
 
-		Method(_CRS, 0x0, NotSerialized)
+		Method(_CRS, 0x0, Serialized)
 		{
 			Name(SBUF,ResourceTemplate ()
 			{
diff --git a/src/mainboard/google/cyan/acpi/codec_realtek.asl b/src/mainboard/google/cyan/acpi/codec_realtek.asl
index 4a1d48de7b..d697aace3e 100644
--- a/src/mainboard/google/cyan/acpi/codec_realtek.asl
+++ b/src/mainboard/google/cyan/acpi/codec_realtek.asl
@@ -26,7 +26,7 @@ Scope (\_SB.PCI0.I2C5)
 		Name (_DDN, AUDIO_CODEC_DDN)
 		Name (_UID, 1)
 
-		Method(_CRS, 0x0, NotSerialized)
+		Method(_CRS, 0x0, Serialized)
 		{
 			Name(SBUF,ResourceTemplate ()
 			{