diff --git a/src/draw/sw/lv_draw_sw_transform.c b/src/draw/sw/lv_draw_sw_transform.c
index edb80f80d7..85419cd8df 100644
--- a/src/draw/sw/lv_draw_sw_transform.c
+++ b/src/draw/sw/lv_draw_sw_transform.c
@@ -127,8 +127,8 @@ void lv_draw_sw_transform(lv_draw_ctx_t * draw_ctx, const lv_area_t * dest_area,
             ys_step_256 = (256 * ys_diff) / (dest_w - 1);
         }
 
-        int32_t xs_ups = xs1_ups;
-        int32_t ys_ups = ys1_ups;
+        int32_t xs_ups = xs1_ups + 0x80;
+        int32_t ys_ups = ys1_ups + 0x80;
 
         if(draw_dsc->antialias == 0) {
             switch(cf) {