diff --git a/globals/base64.h b/globals/base64.h
index c6c3227..0bcede6 100644
--- a/globals/base64.h
+++ b/globals/base64.h
@@ -3,6 +3,7 @@
 
 #include "vector.h"
 #include <string>
+#include <cstdint>
 
 std::string base64_encode(const Vector<uint8_t> &p_buffer);
 Vector<uint8_t> base64_decode(std::string const &);