diff --git a/src/core/include/mp-units/framework/quantity_concepts.h b/src/core/include/mp-units/framework/quantity_concepts.h
index 37929f19..38403569 100644
--- a/src/core/include/mp-units/framework/quantity_concepts.h
+++ b/src/core/include/mp-units/framework/quantity_concepts.h
@@ -41,7 +41,7 @@ void to_base_specialization_of_quantity(const volatile quantity<R, Rep>*);
 
 template<typename T>
 inline constexpr bool is_derived_from_specialization_of_quantity =
-  requires(T* t) { to_base_specialization_of_quantity(t); };
+  requires(T* type) { to_base_specialization_of_quantity(type); };
 
 }  // namespace detail