1 files changed, 1 insertions, 0 deletions
diff --git a/number.h b/number.h
index b1edbd6..337a47d 100644
--- a/number.h
+++ b/number.h
@@ -12,6 +12,7 @@ public:
     number(number &&) = default;
 
     number &operator=(const number &) = default;
+    number &operator=(number &&) = default;
 
     number(std::uint64_t);