diff --git a/crops/hemp.lua b/crops/hemp.lua
index dd49134..e3278f9 100644
--- a/crops/hemp.lua
+++ b/crops/hemp.lua
@@ -111,21 +111,24 @@ minetest.register_craft( {
 	},
 })
 
--- register stairs
-if stairs and stairs.mod and stairs.mod == "redo" then
+-- check and register stairs
+if minetest.global_exists("stairs") then
 
-stairs.register_all("hemp_block", "farming:hemp_block",
-	{snappy = 1, flammable = 2},
-	{"farming_hemp_block.png"},
-	"Hemp Block",
-	default.node_sound_leaves_defaults())
-else
+	if stairs.mod and stairs.mod == "redo" then
 
-stairs.register_stair_and_slab("hemp_block", "farming:hemp_block",
-	{snappy = 1, flammable = 2},
-	{"farming_hemp_block.png"},
-	"Hemp Block",
-	default.node_sound_leaves_defaults())
+		stairs.register_all("hemp_block", "farming:hemp_block",
+			{snappy = 1, flammable = 2},
+			{"farming_hemp_block.png"},
+			"Hemp Block",
+			default.node_sound_leaves_defaults())
+	else
+
+		stairs.register_stair_and_slab("hemp_block", "farming:hemp_block",
+			{snappy = 1, flammable = 2},
+			{"farming_hemp_block.png"},
+			"Hemp Block",
+			default.node_sound_leaves_defaults())
+	end
 end
 
 -- paper
diff --git a/crops/wheat.lua b/crops/wheat.lua
index d53c33e..abf3ada 100644
--- a/crops/wheat.lua
+++ b/crops/wheat.lua
@@ -51,21 +51,25 @@ minetest.register_craft({
 	}
 })
 
-if stairs and stairs.mod and stairs.mod == "redo" then
+-- check and register stairs
+if minetest.global_exists("stairs") then
 
-stairs.register_all("straw", "farming:straw",
-	{snappy = 3, flammable = 4},
-	{"farming_straw.png"},
-	"Straw",
-	default.node_sound_leaves_defaults())
-else
+	if stairs.mod and stairs.mod == "redo" then
 
-stairs.register_stair_and_slab("straw", "farming:straw",
-	{snappy = 3, flammable = 4},
-	{"farming_straw.png"},
-	"Straw Stair",
-	"Straw Slab",
-	default.node_sound_leaves_defaults())
+		stairs.register_all("straw", "farming:straw",
+			{snappy = 3, flammable = 4},
+			{"farming_straw.png"},
+			"Straw",
+			default.node_sound_leaves_defaults())
+	else
+
+		stairs.register_stair_and_slab("straw", "farming:straw",
+			{snappy = 3, flammable = 4},
+			{"farming_straw.png"},
+			"Straw Stair",
+			"Straw Slab",
+			default.node_sound_leaves_defaults())
+	end
 end
 
 -- flour
diff --git a/depends.txt b/depends.txt
index 935ab1b..650885b 100644
--- a/depends.txt
+++ b/depends.txt
@@ -1,5 +1,5 @@
 default
-stairs
+stairs?
 intllib?
 lucky_block?
 toolranks?