diff --git a/source/ubinstall-gtk-keyboard.c b/source/ubinstall-gtk-keyboard.c
index a7e3538..e82afa0 100644
--- a/source/ubinstall-gtk-keyboard.c
+++ b/source/ubinstall-gtk-keyboard.c
@@ -42,7 +42,11 @@ int yon_keyboard_save(main_window *widgets){
         case 2: numlock = "off";
             break;
     }
-    yon_config_register(num_lock_boot_parameter,num_lock_boot_parameter_command,numlock);
+    if (!yon_char_is_empty(numlock)){
+        yon_config_register(num_lock_boot_parameter,num_lock_boot_parameter_command,numlock);
+    } else {
+        yon_config_remove_by_key(num_lock_boot_parameter);
+    }
     if (!main_config.configure_mode){
         int size;
         config_str parameters = yon_config_get_save_parameters_by_key(&size,xkbmodel_parameter,xkbmodel_parameter,num_lock_boot_parameter,NULL);