diff --git a/src/Library/Base64.hpp.orig b/src/Library/Base64.hpp
index 0947f21..aa76311 100644
--- a/src/Library/Base64.hpp.orig
+++ b/src/Library/Base64.hpp
@@ -24,6 +24,7 @@
 
 #include <string>
 #include <cstddef>
+#include <cstdint>
 
 namespace usbguard
 {