diff --git a/extendedcommands.h b/extendedcommands.h
index 9de8180..1223fcd 100644
--- a/extendedcommands.h
+++ b/extendedcommands.h
@@ -33,3 +33,6 @@
 
 int
 __system(const char *command);
+
+void
+show_advanced_menu();