diff --git a/sysdep/unix/io.c b/sysdep/unix/io.c
index 0724667d..78faa186 100644
--- a/sysdep/unix/io.c
+++ b/sysdep/unix/io.c
@@ -2026,6 +2026,7 @@ watchdog_stop(void)
 
 volatile int async_config_flag;		/* Asynchronous reconfiguration/dump scheduled */
 volatile int async_dump_flag;
+volatile int async_shutdown_flag;
 
 void
 io_init(void)
diff --git a/sysdep/unix/main_helper.h b/sysdep/unix/main_helper.h
index d08418e1..3beea1dc 100644
--- a/sysdep/unix/main_helper.h
+++ b/sysdep/unix/main_helper.h
@@ -30,6 +30,10 @@ extern char *bird_name;
 extern char *use_user;
 extern char *use_group;
 
+extern volatile int async_config_flag;
+extern volatile int async_dump_flag;
+extern volatile int async_shutdown_flag;
+
 /*
  * Origin 'static' functions from main.c
  */
diff --git a/sysdep/unix/unix.h b/sysdep/unix/unix.h
index 4e0ff841..a5c11761 100644
--- a/sysdep/unix/unix.h
+++ b/sysdep/unix/unix.h
@@ -95,10 +95,6 @@ int sockaddr_read(sockaddr *sa, int af, ip_addr *a, struct iface **ifa, uint *po
 #define SUN_LEN(ptr) ((size_t) (((struct sockaddr_un *) 0)->sun_path) + strlen ((ptr)->sun_path))
 #endif
 
-volatile int async_config_flag;
-volatile int async_dump_flag;
-volatile int async_shutdown_flag;
-
 void io_init(void);
 void io_loop(void);
 void io_log_dump(void);