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-rw-r--r--plugins/mod_register.lua2
1 files changed, 1 insertions, 1 deletions
diff --git a/plugins/mod_register.lua b/plugins/mod_register.lua
index f89efe20..7a57d65b 100644
--- a/plugins/mod_register.lua
+++ b/plugins/mod_register.lua
@@ -64,7 +64,7 @@ for _, field in ipairs(additional_fields) do
registration_form[#registration_form + 1] = field;
else
if field:match("%+$") then
- field = field:sub(1, #field - 1);
+ field = field:sub(1, -2);
field_map[field].required = true;
end