diff --git a/example/ex3/ex3.cpp b/example/ex3/ex3.cpp
index b1a9b1b8..1af80d60 100644
--- a/example/ex3/ex3.cpp
+++ b/example/ex3/ex3.cpp
@@ -8,13 +8,12 @@ int
 main () {
     namespace q = xo::qty::qty;
     namespace u = xo::qty::nu;
-    using xo::qty::stdquantity;
     using xo::qty::quantity;
     using xo::flatstring;
     using namespace std;
 
-    constexpr stdquantity<u::second> t = q::minutes(2);
-    constexpr stdquantity<u::meter> d = q::kilometers(2.5);
+    constexpr quantity<u::second> t = q::minutes(2);
+    constexpr quantity<u::meter> d = q::kilometers(2.5);
 
     constexpr auto t2 = t*t;
     constexpr auto a = d / (t*t);
diff --git a/include/xo/unit/quantity.hpp b/include/xo/unit/quantity.hpp
index 70673ad9..ecaef42a 100644
--- a/include/xo/unit/quantity.hpp
+++ b/include/xo/unit/quantity.hpp
@@ -158,10 +158,6 @@ namespace xo {
             Repr scale_ = Repr{};
         };
 
-        template < natural_unit<std::int64_t> NaturalUnit,
-                   typename Repr = double >
-        using stdquantity = quantity<NaturalUnit, Repr>;
-
         template <typename Quantity, typename Int, typename Int2x>
         constexpr auto
         rescale(const Quantity & x, const scaled_unit<Int, Int2x> & su) {