diff --git a/src/main.cpp b/src/main.cpp

index 6e2f5e4..b4b9317 100644

--- a/src/main.cpp

+++ b/src/main.cpp

@@ -51,6 +51,10 @@

 #define TD_DIST_VERSION PACKAGE_VERSION

 #endif

+#ifndef G_SOURCE_FUNC

+#define G_SOURCE_FUNC(f) ((GSourceFunc) (void (*)(void)) (f))

+#endif

+

 #define EXIT_UNSUPPORTED 2

 extern int thd_dbus_server_init(gboolean (*exit_handler)(void));