diff --git a/src/mainboard/google/guybrush/variants/dewatt/overridetree.cb b/src/mainboard/google/guybrush/variants/dewatt/overridetree.cb
index 866aee5932..84bf9da25a 100644
--- a/src/mainboard/google/guybrush/variants/dewatt/overridetree.cb
+++ b/src/mainboard/google/guybrush/variants/dewatt/overridetree.cb
@@ -27,6 +27,28 @@ chip soc/amd/cezanne
 	register "telemetry_vddcrsocfull_scale_current_mA" = "29785" #mA
 	register "telemetry_vddcrsocoffset" =  "461"
 
+	# Enable STT support
+	register "stt_control" = "1"
+	register "stt_pcb_sensor_count" = "2"
+	register "stt_min_limit" = "15000"
+	register "stt_m1" = "0x022B"
+	register "stt_m2" = "0x117"
+	register "stt_m3" = "0"
+	register "stt_m4" = "0"
+	register "stt_m5" = "0"
+	register "stt_m6" = "0"
+	register "stt_c_apu" = "0xBA4"
+	register "stt_c_gpu" = "0"
+	register "stt_c_hs2" = "0"
+	register "stt_alpha_apu" = "0x199A"
+	register "stt_alpha_gpu" = "0"
+	register "stt_alpha_hs2" = "0"
+	register "stt_skin_temp_apu" = "0x2D00"
+	register "stt_skin_temp_gpu" = "0"
+	register "stt_skin_temp_hs2" = "0"
+	register "stt_error_coeff" = "0x21"
+	register "stt_error_rate_coefficient" = "0x2666"
+
 	#USB 2/3 phy config
 	register "usb_phy" = "{
 		/* Left USB C0 Port */