diff --git a/mods/lzr_laser/physics.lua b/mods/lzr_laser/physics.lua
index 930faf9..b0a3319 100644
--- a/mods/lzr_laser/physics.lua
+++ b/mods/lzr_laser/physics.lua
@@ -111,3 +111,9 @@ function lzr_laser.emit_lasers_in_area(pos1, pos2)
 		end
 	end
 end
+
+-- Completely recalculate all lasers
+function lzr_laser.full_laser_update(pos1, pos2)
+	lzr_laser.clear_lasers_in_area(pos1, pos2)
+	lzr_laser.emit_lasers_in_area(pos1, pos2)
+end
diff --git a/mods/lzr_laser/tools.lua b/mods/lzr_laser/tools.lua
index 1ffb591..0b2c084 100644
--- a/mods/lzr_laser/tools.lua
+++ b/mods/lzr_laser/tools.lua
@@ -18,13 +18,11 @@ minetest.register_tool("lzr_laser:emit_toggler", {
 		-- Deactivate emitter
 		if def._lzr_inactive then
 			minetest.swap_node(pos, {name=def._lzr_inactive, param2=node.param2})
-			lzr_laser.clear_lasers_in_area(lzr_globals.PLAYFIELD_START, lzr_globals.PLAYFIELD_END)
-			lzr_laser.emit_lasers_in_area(lzr_globals.PLAYFIELD_START, lzr_globals.PLAYFIELD_END)
+			lzr_laser.full_laser_update(lzr_globals.PLAYFIELD_START, lzr_globals.PLAYFIELD_END)
 		-- Activate emitter
 		elseif def._lzr_active then
 			minetest.swap_node(pos, {name=def._lzr_active, param2=node.param2})
-			lzr_laser.clear_lasers_in_area(lzr_globals.PLAYFIELD_START, lzr_globals.PLAYFIELD_END)
-			lzr_laser.emit_lasers_in_area(lzr_globals.PLAYFIELD_START, lzr_globals.PLAYFIELD_END)
+			lzr_laser.full_laser_update(lzr_globals.PLAYFIELD_START, lzr_globals.PLAYFIELD_END)
 		end
 		return itemstack
 	end,