diff --git a/README.md b/README.md
index ece98eb..45e41c0 100644
--- a/README.md
+++ b/README.md
@@ -2,13 +2,11 @@ Wine mod for Minetest
 
 by TenPlus1
 
-License: WTFPL
-
 Depends: Farming Redo
 
 This mod adds a barrel used to ferment grapes into glasses of wine, 9 of which can then be crafted into a bottle of wine.  It can also ferment honey into mead, barley into beer and apples into cider.
 
-Changelog:
+Change log:
 
 - 0.1 - Initial release
 - 0.2 - Added protection checks to barrel
diff --git a/init.lua b/init.lua
index f67f8bb..1db8585 100644
--- a/init.lua
+++ b/init.lua
@@ -235,6 +235,7 @@ minetest.register_craft({
 
 -- Wine barrel abm
 minetest.register_abm({
+	label = "Barrel fermentation",
 	nodenames = {"wine:wine_barrel"},
 	interval = 5,
 	chance = 1,
@@ -242,7 +243,7 @@ minetest.register_abm({
 
 	action = function(pos, node)
 
-		local meta = minetest.get_meta(pos)
+		local meta = minetest.get_meta(pos) ; if not meta then return end
 		local inv = meta:get_inventory()
 
 		-- is barrel empty?
diff --git a/license.txt b/license.txt
new file mode 100644
index 0000000..fec6f6a
--- /dev/null
+++ b/license.txt
@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2016 TenPlus1
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.