diff --git a/TinyEXIF.h b/TinyEXIF.h
index 56354aa..b03d36b 100644
--- a/TinyEXIF.h
+++ b/TinyEXIF.h
@@ -34,6 +34,7 @@
 #ifndef __TINYEXIF_H__
 #define __TINYEXIF_H__
 
+#include <cstdint>
 #include <string>
 #include <vector>