diff --git a/host-services.h b/host-services.h
new file mode 100644
index 0000000..0d93480
--- /dev/null
+++ b/host-services.h
@@ -0,0 +1,3 @@
+#include <systemd/sd-bus.h>
+
+extern "C" int start_host_service(sd_bus *, sd_bus_slot *);