diff --git a/src/mainboard/google/reef/variants/baseboard/devicetree.cb b/src/mainboard/google/reef/variants/baseboard/devicetree.cb
index e663787ae2..f15260b2db 100644
--- a/src/mainboard/google/reef/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/reef/variants/baseboard/devicetree.cb
@@ -50,6 +50,9 @@ chip soc/intel/apollolake
 	register "hdaudio_pwr_gate_enable" = "1"
 	register "hdaudio_bios_config_lockdown" = "1"
 
+	# Enable lpss s0ix
+	register "lpss_s0ix_enable" = "1"
+
 	# GPE configuration
 	# Note that GPE events called out in ASL code rely on this
 	# route, i.e., if this route changes then the affected GPE