diff --git a/include/ircd/conf.h b/include/ircd/conf.h
index 92cc552a5..2523a0bc6 100644
--- a/include/ircd/conf.h
+++ b/include/ircd/conf.h
@@ -55,6 +55,9 @@ namespace ircd::conf
 
 	using set_cb = std::function<void ()>;
 
+	const size_t NAME_MAX_LEN {127};
+	const size_t VALUE_MAX_LEN {48_KiB};
+
 	extern std::map<string_view, item<> *> items;
 	extern callbacks<void (item<> &)> on_init;
 
@@ -76,8 +79,6 @@ namespace ircd::conf
 template<>
 struct ircd::conf::item<void>
 {
-	static const size_t NAME_MAX_LEN;
-
 	json::strung feature_;
 	json::object feature;
 	string_view name;
diff --git a/ircd/conf.cc b/ircd/conf.cc
index c29df9ed1..4ddeccdef 100644
--- a/ircd/conf.cc
+++ b/ircd/conf.cc
@@ -194,12 +194,6 @@ ircd::conf::exists(const string_view &key)
 // item
 //
 
-decltype(ircd::conf::item<void>::NAME_MAX_LEN)
-ircd::conf::item<void>::NAME_MAX_LEN
-{
-	127
-};
-
 /// Conf item abstract constructor.
 ircd::conf::item<void>::item(const json::members &opts,
                              conf::set_cb set_cb)
@@ -376,8 +370,8 @@ void
 ircd::conf::call_env(item<void> &item)
 noexcept try
 {
-	assert(size(item.name) <= item.NAME_MAX_LEN);
-	thread_local char key[conf::item<void>::NAME_MAX_LEN];
+	assert(size(item.name) <= conf::NAME_MAX_LEN);
+	thread_local char key[conf::NAME_MAX_LEN];
 	const string_view name
 	{
 		key,