diff --git a/config.h b/config.h
index 48ec148..ed2bf82 100644
--- a/config.h
+++ b/config.h
@@ -4,5 +4,6 @@
 // For now, only 256RFR2 is supported
 #define HAL_ATMEGA256RFR2
 #define PHY_ATMEGARFR2
+#define PHY_ENABLE_ENERGY_DETECTION
 
 #endif // _LWM_CONFIG_H