diff --git a/bootlib.h b/syslib.h
copy from bootlib.h
copy to syslib.h
--- a/bootlib.h
+++ b/syslib.h
@@ -3,5 +3,6 @@
 
 void bootloader_unset(void);
 void bootloader_enter(void);
+void systemclock_config(void);
 
 #endif