diff --git a/src/systems/si/include/units/si/unit_symbols.h b/src/systems/si/include/units/si/unit_symbols.h
index abf3ccf5..7f832023 100644
--- a/src/systems/si/include/units/si/unit_symbols.h
+++ b/src/systems/si/include/units/si/unit_symbols.h
@@ -85,7 +85,7 @@ inline constexpr auto dg = deci<gram>;
 inline constexpr auto g = gram;
 inline constexpr auto dag = deca<gram>;
 inline constexpr auto hg = hecto<gram>;
-inline constexpr auto kg = kilo<gram>;
+inline constexpr auto kg = kilogram;
 inline constexpr auto Mg = mega<gram>;
 inline constexpr auto Gg = giga<gram>;
 inline constexpr auto Tg = tera<gram>;