diff --git a/src/core/include/units/magnitude.h b/src/core/include/units/magnitude.h
index 9e203848..9c57baa8 100644
--- a/src/core/include/units/magnitude.h
+++ b/src/core/include/units/magnitude.h
@@ -363,7 +363,7 @@ concept Magnitude = detail::is_magnitude<T>;
  * Can avoid the need for an unsightly `.template` keyword.
  */
 template<typename T>
-T get_value(Magnitude auto m) { return m.template value<T>; }
+T get_value(Magnitude auto m) { return decltype(m)::template value<T>; }
 
 /**
  * @brief  A base to represent pi.