1 files changed, 2 insertions, 0 deletions
diff --git a/src/party.cpp b/src/party.cpp
index 4b14aa32b..5dd1715d8 100644
--- a/src/party.cpp
+++ b/src/party.cpp
@@ -34,6 +34,8 @@ namespace
     static class SortPartyFunctor final
     {
         public:
+            A_DEFAULT_COPY(SortPartyFunctor)
+
             bool operator() (const PartyMember *const p1,
                              const PartyMember *const p2) const
             {