diff --git a/include/utils.hpp b/include/utils.hpp
index 4ee0b0d..be87199 100644
--- a/include/utils.hpp
+++ b/include/utils.hpp
@@ -13,7 +13,7 @@
 namespace utils {
 
 constexpr char fill_char = ' ';
-enum just { right, left };
+enum just : uint8_t { right, left };
 
 std::string pad(std::string s, uint8_t len, just j = right);
 std::string center(std::string str, uint8_t len);