diff --git a/include/proto/signal.h b/include/proto/signal.h
index 063683f..b61a527 100644
--- a/include/proto/signal.h
+++ b/include/proto/signal.h
@@ -32,6 +32,7 @@
 struct sig_handler *signal_register_task(int sig, struct task *task, int reason);
 void signal_unregister_handler(struct sig_handler *handler);
 void signal_unregister_target(int sig, void *target);
+void haproxy_unblock_signals();
 
 static inline void signal_process_queue()
 {