diff --git a/clams/init.lua b/clams/init.lua
index 2674a7a..85d2550 100644
--- a/clams/init.lua
+++ b/clams/init.lua
@@ -41,7 +41,7 @@ minetest.register_node("clams:dirtalgae", {
 minetest.register_node("clams:sandalgaeused", {
 	description = "Used sandalgae",
 	tiles = {"default_sand.png^clams_algaeused.png"},
-	inventory_image = {"default_sand.png^clams_algaeused.png"},
+	inventory_image = "default_sand.png^clams_algaeused.png",
 	is_ground_content = true,
 	groups = {crumbly=3, falling_node=1, sand=1},
 	sounds = default.node_sound_sand_defaults(),
@@ -50,7 +50,7 @@ minetest.register_node("clams:sandalgaeused", {
 minetest.register_node("clams:dirtalgaeused", {
 	description = "Used dirtalgae",
 	tiles = {"default_dirt.png^clams_algaeused.png"},
-	inventory_image = {"default_dirt.png^clams_algaeused.png"},
+	inventory_image = "default_dirt.png^clams_algaeused.png",
 	is_ground_content = true,
 	groups = {crumbly=3},
 	sounds = default.node_sound_dirt_defaults(),