diff --git a/src/funcs.h b/src/funcs.h
index ce9a99dc..f64a40ff 100644
--- a/src/funcs.h
+++ b/src/funcs.h
@@ -35,7 +35,7 @@ void Shutdown(WShutdownMode mode);
 
 void RestoreDesktop(WScreen *scr);
 
-void Exit(int status);
+void Exit(int status) __attribute__((noreturn));
 
 void Restart(char *manager, Bool abortOnFailure);