diff --git a/README.md b/README.md
index dfc1af1..b58e86a 100644
--- a/README.md
+++ b/README.md
@@ -14,4 +14,6 @@ Released under WTFPL
 
 0.4 - Supports locked chest and protected chest
 
-0.5 - Works with 0.4.13's new shift+click for newly placed Hoppers
\ No newline at end of file
+0.5 - Works with 0.4.13's new shift+click for newly placed Hoppers
+
+0.6 - Remove formspec from hopper nodes to improve speed for servers
\ No newline at end of file
diff --git a/init.lua b/init.lua
index 5aa7be9..aeb9321 100644
--- a/init.lua
+++ b/init.lua
@@ -74,6 +74,8 @@ minetest.register_node("hopper:hopper", {
 			.." takes stuff from hopper at "
 			..minetest.pos_to_string(pos))
 	end,
+
+	on_rotate = screwdriver.disallow,
 })
 
 -- hopper side
@@ -138,6 +140,8 @@ minetest.register_node("hopper:hopper_side", {
 			.." takes stuff from hopper at "
 			..minetest.pos_to_string(pos))
 	end,
+
+	on_rotate = screwdriver.rotate_simple,
 })
 
 -- suck in items on top of hopper