diff --git a/AudioFile.h b/AudioFile.h
index 06b094c..29449dd 100644
--- a/AudioFile.h
+++ b/AudioFile.h
@@ -47,6 +47,7 @@
 #include <iterator>
 #include <algorithm>
 #include <limits>
+#include <cstdint>
 
 // disable some warnings on Windows
 #if defined (_MSC_VER)