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-rw-r--r--util/set.lua2
1 files changed, 1 insertions, 1 deletions
diff --git a/util/set.lua b/util/set.lua
index c136a522..8630638e 100644
--- a/util/set.lua
+++ b/util/set.lua
@@ -12,7 +12,7 @@ local t_concat = table.concat;
local _ENV = nil;
-local set_mt = {};
+local set_mt = { __name = "set" };
function set_mt.__call(set, _, k)
return next(set._items, k);
end