diff --git a/include/intelhex.h b/include/intelhex.h
index 428a701..5cb11ae 100644
--- a/include/intelhex.h
+++ b/include/intelhex.h
@@ -11,6 +11,7 @@
 #include <vector>
 
 #include <unistd.h>
+#include <cstdint>
 
 namespace intelhex
 {