diff --git a/central_message.lua b/central_message.lua
index 6a5f1bb..b725901 100644
--- a/central_message.lua
+++ b/central_message.lua
@@ -1,4 +1,4 @@
-if rawget(_G, "cmsg") then
+if minetest.global_exists("cmsg") then
 	function quests.show_message(t, playername, text)
 		if (quests.hud[playername].central_message_enabled) then
 			local player = minetest.get_player_by_name(playername)
diff --git a/depends.txt b/depends.txt
deleted file mode 100644
index 0650d90..0000000
--- a/depends.txt
+++ /dev/null
@@ -1,4 +0,0 @@
-intllib?
-unified_inventory?
-inventory_plus?
-central_message?
diff --git a/mod.conf b/mod.conf
new file mode 100644
index 0000000..9cbfd1f
--- /dev/null
+++ b/mod.conf
@@ -0,0 +1,3 @@
+name = quests
+optional_depends = intllib, unified_inventory, inventory_plus, central_message
+description = Quest framework for Minetest.
\ No newline at end of file