diff --git a/src/mainboard/google/poppy/variants/poppy/include/variant/ec.h b/src/mainboard/google/poppy/variants/poppy/include/variant/ec.h
index ef47d3751c..81f92b7844 100644
--- a/src/mainboard/google/poppy/variants/poppy/include/variant/ec.h
+++ b/src/mainboard/google/poppy/variants/poppy/include/variant/ec.h
@@ -18,4 +18,6 @@
 
 #include <baseboard/ec.h>
 
+#define EC_ENABLE_SECOND_BATTERY_DEVICE
+
 #endif /* __MAINBOARD_EC_H__ */