diff --git a/expected.hpp b/expected.hpp
index c1cd6cd..03a53f4 100644
--- a/expected.hpp
+++ b/expected.hpp
@@ -680,7 +680,7 @@ struct expected_move_assign_base<T, E, false>
   operator=(const expected_move_assign_base &rhs) noexcept(
       std::is_nothrow_move_constructible<T>::value
           &&std::is_nothrow_move_assignable<T>::value) {
-    this->assign(std::move(rhs));
+    this->assign(rhs);
     return *this;
   }
   expected_move_assign_base &