1 files changed, 2 insertions, 0 deletions
diff --git a/src/guild.cpp b/src/guild.cpp
index 4fada0f9c..9f166d9d3 100644
--- a/src/guild.cpp
+++ b/src/guild.cpp
@@ -35,6 +35,8 @@ namespace
     static class SortGuildFunctor final
     {
         public:
+            A_DEFAULT_COPY(SortGuildFunctor)
+
             bool operator() (const GuildMember *const m1,
                              const GuildMember *const m2) const
             {