diff --git a/src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb b/src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb
index b91f84b4df..dfe9b62342 100644
--- a/src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb
+++ b/src/mainboard/google/guybrush/variants/nipperkin/overridetree.cb
@@ -167,4 +167,6 @@ chip soc/amd/cezanne
 			device generic 0.1 on end
 	end
 
+	register "common_config.espi_config.alert_pin" = "ESPI_ALERT_PIN_IN_BAND"
+
 end	# chip soc/amd/cezanne