diff --git a/lvgl_tft/disp_driver.c b/lvgl_tft/disp_driver.c
index c0b7c8d..634ee93 100644
--- a/lvgl_tft/disp_driver.c
+++ b/lvgl_tft/disp_driver.c
@@ -7,7 +7,7 @@
 #include "esp_lcd_backlight.h"
 #include "sdkconfig.h"
 
-void disp_driver_init(lv_disp_drv_t *drv)
+void *disp_driver_init(lv_disp_drv_t *drv)
 {
 #if defined CONFIG_LV_TFT_DISPLAY_CONTROLLER_ILI9341
     ili9341_init();
diff --git a/lvgl_tft/disp_driver.h b/lvgl_tft/disp_driver.h
index f4929bf..8636153 100644
--- a/lvgl_tft/disp_driver.h
+++ b/lvgl_tft/disp_driver.h
@@ -67,7 +67,7 @@ extern "C" {
  **********************/
 
 /* Initialize display */
-void disp_driver_init(lv_disp_drv_t *drv);
+void *disp_driver_init(lv_disp_drv_t *drv);
 
 /* Display flush callback */
 void disp_driver_flush(lv_disp_drv_t * drv, const lv_area_t * area, lv_color_t * color_map);