diff --git a/docs/porting/display.rst b/docs/porting/display.rst
index e013c42d4..2daeb5cd4 100644
--- a/docs/porting/display.rst
+++ b/docs/porting/display.rst
@@ -214,9 +214,7 @@ You can do this in the following way:
 .. code:: c
 
    /*Delete the original display refresh timer*/
-   lv_timer_delete(disp->refr_timer);
-   disp->refr_timer = NULL;
-
+   lv_display_delete_refr_timer(disp);
 
    /*Call this anywhere you want to refresh the dirty areas*/
    _lv_display_refr_timer(NULL);