diff --git a/example/include/geographic.h b/example/include/geographic.h
index 77808181..036fda4b 100644
--- a/example/include/geographic.h
+++ b/example/include/geographic.h
@@ -38,7 +38,6 @@
 namespace geographic {
 
 inline constexpr struct mean_sea_level : mp_units::absolute_point_origin<mp_units::isq::altitude> {
-  using mp_units::absolute_point_origin<mp_units::isq::altitude>::absolute_point_origin;
 } mean_sea_level;
 
 using msl_altitude = mp_units::quantity_point<mp_units::isq::altitude[mp_units::si::metre], mean_sea_level>;
diff --git a/example/unmanned_aerial_vehicle.cpp b/example/unmanned_aerial_vehicle.cpp
index 435cc8f7..912effe1 100644
--- a/example/unmanned_aerial_vehicle.cpp
+++ b/example/unmanned_aerial_vehicle.cpp
@@ -38,7 +38,6 @@ enum class earth_gravity_model { egm84_15, egm95_5, egm2008_1 };
 template<earth_gravity_model M>
 struct height_above_ellipsoid_t : absolute_point_origin<isq::altitude> {
   static constexpr earth_gravity_model egm = M;
-  using absolute_point_origin<isq::altitude>::absolute_point_origin;
 };
 template<earth_gravity_model M>
 inline constexpr height_above_ellipsoid_t<M> height_above_ellipsoid;
diff --git a/src/core/include/mp-units/quantity_point.h b/src/core/include/mp-units/quantity_point.h
index 76b92143..2e73f328 100644
--- a/src/core/include/mp-units/quantity_point.h
+++ b/src/core/include/mp-units/quantity_point.h
@@ -32,12 +32,6 @@ namespace mp_units {
 template<QuantitySpec auto Q>
 struct absolute_point_origin {
   static constexpr QuantitySpec auto quantity_spec = Q;
-  absolute_point_origin() = default;
-  template<QuantitySpec auto Q2>
-    requires(implicitly_convertible(Q2, Q))
-  consteval absolute_point_origin(absolute_point_origin<Q2>)
-  {
-  }
 };
 
 namespace detail {
diff --git a/test/unit_test/static/concepts_test.cpp b/test/unit_test/static/concepts_test.cpp
index a7b0a6da..76cb5e80 100644
--- a/test/unit_test/static/concepts_test.cpp
+++ b/test/unit_test/static/concepts_test.cpp
@@ -359,7 +359,6 @@ static_assert(!QuantityLike<int>);
 
 // QuantityPoint
 inline constexpr struct my_origin : absolute_point_origin<isq::length> {
-  using absolute_point_origin<isq::length>::absolute_point_origin;
 } my_origin;
 
 static_assert(QuantityPoint<quantity_point<si::metre>>);