diff --git a/gdbsupport/packed.h b/gdbsupport/packed.h
index cd331b5477d..3468cf44207 100644
--- a/gdbsupport/packed.h
+++ b/gdbsupport/packed.h
@@ -31,6 +31,8 @@ template<typename T, size_t Bytes = sizeof (T)>
 struct packed
 {
 public:
+  packed () noexcept = default;
+
   packed (T val)
   {
     m_val = val;