diff --git a/src/include/jessilib/unicode_syntax.hpp b/src/include/jessilib/unicode_syntax.hpp
index ad84760..5c2bdf2 100644
--- a/src/include/jessilib/unicode_syntax.hpp
+++ b/src/include/jessilib/unicode_syntax.hpp
@@ -25,6 +25,7 @@
 
 #pragma once
 
+#include <limits>
 #include "unicode.hpp"
 
 namespace jessilib {