diff --git a/README.md b/README.md
index 690e7c6..90bd785 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,7 @@ optional: intllib
 
 
 # License
-Copyright (C) 2017-2021 Joachim Stolberg
+Copyright (C) 2017-2020 Joachim Stolberg  
 Code: Licensed under the GNU LGPL version 2.1 or later.
       See LICENSE.txt and http://www.gnu.org/licenses/lgpl-2.1.txt  
 Textures: CC0
@@ -81,6 +81,5 @@ Textures: CC0
 - 2020-01-03  v1.7  * max_tube_length bugfix
 - 2020-02-02  v1.8  * 'special nodes' as alternative to 'secondary nodes' introduced
 - 2020-05-31  v1.9  * Generator function 'get_tube_line' added, storage improvements
-- 2021-01-17  v2.0  * Update cache on node removal (#7) and refuse to connect with faces of a node which are not marked valid (#3)
 
 
diff --git a/internal2.lua b/internal2.lua
index f1a1d9a..1d24b24 100644
--- a/internal2.lua
+++ b/internal2.lua
@@ -90,7 +90,6 @@ function Tube:get_node_lvm(pos)
 		param2 = param2_data[idx]
 	}
 	return node
-	return {name="ignore", param2=0}
 end
 
 -- Read param2 from a primary node at the given position.
diff --git a/tube_api.lua b/tube_api.lua
index bfd79ca..d70e7a2 100644
--- a/tube_api.lua
+++ b/tube_api.lua
@@ -13,7 +13,7 @@
 ]]--
 
 -- Version for compatibility checks, see readme.md/history
-tubelib2.version = 2.0
+tubelib2.version = 1.9
 
 -- for lazy programmers
 local S = function(pos) if pos then return minetest.pos_to_string(pos) end end