1 files changed, 5 insertions, 0 deletions
diff --git a/src/components.c b/src/components.c
index 13a3822ed3..d4982b13c9 100644
--- a/src/components.c
+++ b/src/components.c
@@ -237,6 +237,11 @@ int rtthread_startup(void)
     /* scheduler system initialization */
     rt_system_scheduler_init();
 
+#ifdef RT_USING_SIGNALS
+    /* signal system initialization */
+    rt_system_signal_init();
+#endif
+
     /* create init_thread */
     rt_application_init();