--- a/toonz/sources/common/tiio/tiio_jpg_exif.cpp
+++ b/toonz/sources/common/tiio/tiio_jpg_exif.cpp
@@ -8,6 +8,7 @@
 #include "tiio_jpg_exif.h"
 #include <iostream>
 #include <string.h>
+#include <stdint.h>
 
 // for debug
 #define ShowTags 0