diff --git a/libraries/LittleVGL/examples/Portenta_lvgl/Portenta_lvgl.ino b/libraries/LittleVGL/examples/Portenta_lvgl/Portenta_lvgl.ino
index 4a12a169b..a5d06c72d 100644
--- a/libraries/LittleVGL/examples/Portenta_lvgl/Portenta_lvgl.ino
+++ b/libraries/LittleVGL/examples/Portenta_lvgl/Portenta_lvgl.ino
@@ -1,4 +1,5 @@
 #include <lvgl.h>
+#include "mbed.h"
 
 #include "Portenta_Video.h"
 #include "SDRAM.h"