diff --git a/lib/util.h b/lib/util.h
index 2bb6cd9a..67a36972 100644
--- a/lib/util.h
+++ b/lib/util.h
@@ -1,5 +1,6 @@
 #include <string>
 #include <deque>
+#include <stdint.h>
 
 namespace Util {
   bool stringScan(const std::string & src, const std::string & pattern, std::deque<std::string> & result);