diff --git a/include/esp32_smartdisplay.h b/include/esp32_smartdisplay.h
index b95b3d7..87b5aa3 100644
--- a/include/esp32_smartdisplay.h
+++ b/include/esp32_smartdisplay.h
@@ -4,6 +4,7 @@
 #include <Arduino.h>
 #include <lvgl.h>
 #include <display/lv_display_private.h>
+#include <misc/lv_timer_private.h>
 #include <indev/lv_indev_private.h>
 
 // Use last PWM_CHANNEL for backlight