diff --git a/lv_objx/lv_ddlist.c b/lv_objx/lv_ddlist.c
index ce4985ea8..89e5e601d 100644
--- a/lv_objx/lv_ddlist.c
+++ b/lv_objx/lv_ddlist.c
@@ -448,7 +448,7 @@ static bool lv_ddlist_design(lv_obj_t * ddlist, const lv_area_t * mask, lv_desig
             rect_area.y1 += ext->sel_opt_id * (font_h + style->text.line_space);
             rect_area.y1 -= style->text.line_space / 2;
 
-            rect_area.y2 = rect_area.y1 + font_h + style->text.line_space;
+            rect_area.y2 = rect_area.y1 + font_h + style->text.line_space - 1;
             rect_area.x1 = ddlist->coords.x1;
             rect_area.x2 = ddlist->coords.x2;
 
@@ -474,7 +474,7 @@ static bool lv_ddlist_design(lv_obj_t * ddlist, const lv_area_t * mask, lv_desig
         area_sel.y1 += ext->sel_opt_id * (font_h + style->text.line_space);
         area_sel.y1 -= style->text.line_space / 2;
 
-        area_sel.y2 = area_sel.y1 + font_h + style->text.line_space;
+        area_sel.y2 = area_sel.y1 + font_h + style->text.line_space - 1;
         area_sel.x1 = ddlist->coords.x1;
         area_sel.x2 = ddlist->coords.x2;
         lv_area_t mask_sel;
diff --git a/lv_objx/lv_roller.c b/lv_objx/lv_roller.c
index 3fed3e2bb..c23db3576 100644
--- a/lv_objx/lv_roller.c
+++ b/lv_objx/lv_roller.c
@@ -228,7 +228,8 @@ static bool lv_roller_design(lv_obj_t * roller, const lv_area_t * mask, lv_desig
         lv_coord_t font_h = lv_font_get_height(font);
         lv_area_t rect_area;
         rect_area.y1 = roller->coords.y1 + lv_obj_get_height(roller) / 2 - font_h / 2 - style->text.line_space / 2;
-        rect_area.y2 = rect_area.y1 + font_h + style->text.line_space;
+        if((font_h & 0x1) && (style->text.line_space & 0x1)) rect_area.y1 --;		/*Compensate the two rounding error*/
+        rect_area.y2 = rect_area.y1 + font_h + style->text.line_space - 1;
         rect_area.x1 = roller->coords.x1;
         rect_area.x2 = roller->coords.x2;
 
@@ -244,7 +245,8 @@ static bool lv_roller_design(lv_obj_t * roller, const lv_area_t * mask, lv_desig
         /*Redraw the text on the selected area with a different color*/
         lv_area_t rect_area;
         rect_area.y1 = roller->coords.y1 + lv_obj_get_height(roller) / 2 - font_h / 2 - style->text.line_space / 2;
-        rect_area.y2 = rect_area.y1 + font_h + style->text.line_space;
+        if((font_h & 0x1) && (style->text.line_space & 0x1)) rect_area.y1 --;		/*Compensate the two rounding error*/
+        rect_area.y2 = rect_area.y1 + font_h + style->text.line_space - 1;
         rect_area.x1 = roller->coords.x1;
         rect_area.x2 = roller->coords.x2;
         lv_area_t mask_sel;