diff --git a/include/license++/license.h b/include/license++/license.h
index eab392d..67b405e 100644
--- a/include/license++/license.h
+++ b/include/license++/license.h
@@ -9,7 +9,7 @@
 
 #ifndef LICENSEPP_License_h
 #define LICENSEPP_License_h
-
+#include <stdint.h>
 #include <string>
 
 namespace licensepp {