diff --git a/lib/bitfields.h b/lib/bitfields.h
index 96b7605f..6d363e2c 100644
--- a/lib/bitfields.h
+++ b/lib/bitfields.h
@@ -1,5 +1,6 @@
 #pragma once
 #include <string>
+#include <stdint.h>
 
 namespace Util{
   bool stringToBool(std::string & str);