diff --git a/src/mainboard/google/fizz/devicetree.cb b/src/mainboard/google/fizz/devicetree.cb
index 9fb366df43..3b084ff1f9 100644
--- a/src/mainboard/google/fizz/devicetree.cb
+++ b/src/mainboard/google/fizz/devicetree.cb
@@ -285,6 +285,7 @@ chip soc/intel/skylake
 
 	register "speed_shift_enable" = "1"
 	register "tdp_psyspl2" = "90"
+	register "psys_pmax" = "120"
 	register "tcc_offset" = "6"     # TCC of 94C
 
 	# Use default SD card detect GPIO configuration