diff --git a/src/systems/include/mp-units/systems/si/unit_symbols.h b/src/systems/include/mp-units/systems/si/unit_symbols.h
index eaa2e7d22..060bfb93f 100644
--- a/src/systems/include/mp-units/systems/si/unit_symbols.h
+++ b/src/systems/include/mp-units/systems/si/unit_symbols.h
@@ -486,7 +486,7 @@ inline constexpr auto uohm = micro<si::ohm>;
 inline constexpr auto mohm = milli<si::ohm>;
 inline constexpr auto cohm = centi<si::ohm>;
 inline constexpr auto dohm = deci<si::ohm>;
-inline constexpr auto ohm = si::ohm;
+using si::ohm;
 inline constexpr auto daohm = deca<si::ohm>;
 inline constexpr auto hohm = hecto<si::ohm>;
 inline constexpr auto kohm = kilo<si::ohm>;