diff --git a/legacy/elementary/src/lib/elm_slider.c b/legacy/elementary/src/lib/elm_slider.c
index 6ddcc06f42..1ce1a4f5c8 100644
--- a/legacy/elementary/src/lib/elm_slider.c
+++ b/legacy/elementary/src/lib/elm_slider.c
@@ -398,7 +398,7 @@ _key_action_drag(Evas_Object *obj, const char *params)
 }
 
 EOLIAN static Eina_Bool
-_elm_slider_elm_widget_event(Eo *obj, Elm_Slider_Data *sd, Evas_Object *src, Evas_Callback_Type type, void *event_info)
+_elm_slider_elm_widget_event(Eo *obj, Elm_Slider_Data *sd EINA_UNUSED, Evas_Object *src, Evas_Callback_Type type, void *event_info)
 {
    (void) src;