diff --git a/tests/unittests/ui/stub_ui.c b/tests/unittests/ui/stub_ui.c
index 2b999fd3..178f1daa 100644
--- a/tests/unittests/ui/stub_ui.c
+++ b/tests/unittests/ui/stub_ui.c
@@ -417,6 +417,7 @@ void cons_alert(void) {}
 void cons_theme_setting(void) {}
 void cons_privileges_setting(void) {}
 void cons_beep_setting(void) {}
+void cons_color_setting(void) {}
 void cons_console_setting(void) {}
 void cons_flash_setting(void) {}
 void cons_splash_setting(void) {}