diff --git a/src/widgets/lv_switch.c b/src/widgets/lv_switch.c
index dd8979252..b32861043 100644
--- a/src/widgets/lv_switch.c
+++ b/src/widgets/lv_switch.c
@@ -173,7 +173,7 @@ static void draw_main(lv_event_t * e)
     /*Draw the knob*/
     lv_coord_t anim_value_x = 0;
     lv_coord_t knob_size = lv_obj_get_height(obj);
-    lv_coord_t anim_length = obj->coords.x2 - bg_right - obj->coords.x1 - bg_left - knob_size;
+    lv_coord_t anim_length = lv_area_get_width(&obj->coords) - knob_size;
 
     if(LV_SWITCH_IS_ANIMATING(sw)) {
         /* Use the animation's coordinate */
@@ -190,7 +190,7 @@ static void draw_main(lv_event_t * e)
     }
 
     lv_area_t knob_area;
-    knob_area.x1 = obj->coords.x1 + bg_left + anim_value_x;
+    knob_area.x1 = obj->coords.x1 + anim_value_x;
     knob_area.x2 = knob_area.x1 + knob_size;
 
     knob_area.y1 = obj->coords.y1;