diff --git a/test/static/quantity_test.cpp b/test/static/quantity_test.cpp
index b8111368..ea375e38 100644
--- a/test/static/quantity_test.cpp
+++ b/test/static/quantity_test.cpp
@@ -938,10 +938,10 @@ static_assert(is_of_type<quantity_cast<isq::distance>(isq::length(1 * m)), quant
 static_assert(is_of_type<quantity_cast<kind_of<isq::length>>(isq::length(1 * m)), quantity<si::metre, int>>);
 static_assert(is_of_type<quantity_cast<kind_of<isq::length>>(isq::distance(1 * m)), quantity<si::metre, int>>);
 // lvalue references in quantity_cast
-inline constexpr quantity<isq::distance[m], int> to_distance(quantity<m, int> arg)
-{
-  return quantity_cast<isq::distance>(arg);
-}
+namespace lvalue_tests {
+quantity<m, int> lvalue_q = 1 * m;
+static_assert(is_of_type<quantity_cast<isq::distance>(lvalue_q), quantity<isq::distance[m], int>>);
+}  // namespace lvalue_tests
 
 // QuantityOf
 static_assert(QuantityOf<quantity<isq::length[m]>, isq::length>);