diff --git a/src/mainboard/google/poppy/variants/nocturne/include/variant/ec.h b/src/mainboard/google/poppy/variants/nocturne/include/variant/ec.h
index 46e848b710..dfb0f7449e 100644
--- a/src/mainboard/google/poppy/variants/nocturne/include/variant/ec.h
+++ b/src/mainboard/google/poppy/variants/nocturne/include/variant/ec.h
@@ -48,6 +48,7 @@
 #define MAINBOARD_EC_S3_WAKE_EVENTS \
 	(MAINBOARD_EC_S5_WAKE_EVENTS |\
 	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_KEY_PRESSED) |\
+	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_MKBP)        |\
 	 EC_HOST_EVENT_MASK(EC_HOST_EVENT_MODE_CHANGE))
 
 #define MAINBOARD_EC_S0IX_WAKE_EVENTS	(MAINBOARD_EC_S3_WAKE_EVENTS)