From 120a89b6b1cffdb86d2a646044fef9ca0da89dab Mon Sep 17 00:00:00 2001
From: Robin Leroy <egg.robin.leroy@gmail.com>
Date: Sat, 16 Mar 2024 19:01:59 +0100
Subject: [PATCH] remove_const

---
 quantities/concepts.hpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/quantities/concepts.hpp b/quantities/concepts.hpp
index e3ddbd34e5..2aafddd1b0 100644
--- a/quantities/concepts.hpp
+++ b/quantities/concepts.hpp
@@ -16,7 +16,7 @@ using namespace quantities::_quantities;
 
 template<typename T>
 concept quantity = std::integral<T> || std::floating_point<T> ||
-                   is_instance_of_v<Quantity, T>;
+                   is_instance_of_v<Quantity, std::remove_const_t<T>>;
 
 }  // namespace internal