diff --git a/sensor-monitor/Makefile.am b/sensor-monitor/Makefile.am
index 313c59f..16333ab 100644
--- a/sensor-monitor/Makefile.am
+++ b/sensor-monitor/Makefile.am
@@ -26,3 +26,8 @@
 	$(PHOSPHOR_LOGGING_CFLAGS) \
 	${PHOSPHOR_DBUS_INTERFACES_CFLAGS} \
 	-flto
+
+if HOST_STATE_ENABLED
+ENABLE_HOST_STATE = 1
+sensor_monitor_CXXFLAGS+=-DENABLE_HOST_STATE
+endif