diff --git a/mods/MAPGEN/mcl_nether_fortresses/init.lua b/mods/MAPGEN/mcl_nether_fortresses/init.lua
index 4375089ee5..57d9dbd8d1 100644
--- a/mods/MAPGEN/mcl_nether_fortresses/init.lua
+++ b/mods/MAPGEN/mcl_nether_fortresses/init.lua
@@ -36,8 +36,15 @@ mcl_structures.register_structure("nether_bulwark",{
 	filenames = {
 		modpath.."/schematics/mcl_nether_fortresses_nether_bulwark.mts"
 	},
-	daughters = {
-		[modpath.."/schematics/mcl_nether_fortresses_nether_bulwark_interior_1.mts"] = vector.new(5,0,5),
+	daughters = {{
+			files = {
+				modpath.."/schematics/mcl_nether_fortresses_nether_bulwark_interior_1.mts",
+				modpath.."/schematics/mcl_nether_fortresses_nether_bulwark_interior_2.mts",
+				modpath.."/schematics/mcl_nether_fortresses_nether_bulwark_interior_3.mts",
+				modpath.."/schematics/mcl_nether_fortresses_nether_bulwark_interior_4.mts",
+			},
+			pos = vector.new(5,0,5),
+		},
 	},
 	y_offset = 0,
 	construct_nodes = {"group:wall"},
diff --git a/mods/MAPGEN/mcl_nether_fortresses/schematics/mcl_nether_fortresses_nether_bulwark_interior_2.mts b/mods/MAPGEN/mcl_nether_fortresses/schematics/mcl_nether_fortresses_nether_bulwark_interior_2.mts
new file mode 100644
index 0000000000..b73a5a5904
Binary files /dev/null and b/mods/MAPGEN/mcl_nether_fortresses/schematics/mcl_nether_fortresses_nether_bulwark_interior_2.mts differ
diff --git a/mods/MAPGEN/mcl_nether_fortresses/schematics/mcl_nether_fortresses_nether_bulwark_interior_3.mts b/mods/MAPGEN/mcl_nether_fortresses/schematics/mcl_nether_fortresses_nether_bulwark_interior_3.mts
new file mode 100644
index 0000000000..0a4c054254
Binary files /dev/null and b/mods/MAPGEN/mcl_nether_fortresses/schematics/mcl_nether_fortresses_nether_bulwark_interior_3.mts differ
diff --git a/mods/MAPGEN/mcl_nether_fortresses/schematics/mcl_nether_fortresses_nether_bulwark_interior_4.mts b/mods/MAPGEN/mcl_nether_fortresses/schematics/mcl_nether_fortresses_nether_bulwark_interior_4.mts
new file mode 100644
index 0000000000..d7e23f0278
Binary files /dev/null and b/mods/MAPGEN/mcl_nether_fortresses/schematics/mcl_nether_fortresses_nether_bulwark_interior_4.mts differ
diff --git a/mods/MAPGEN/mcl_structures/api.lua b/mods/MAPGEN/mcl_structures/api.lua
index d1be83015a..efbe3ccb14 100644
--- a/mods/MAPGEN/mcl_structures/api.lua
+++ b/mods/MAPGEN/mcl_structures/api.lua
@@ -266,16 +266,15 @@ function mcl_structures.place_structure(pos, def, pr, blockseed)
 			local ap = function(pos,def,pr,blockseed) end
 
 			if def.daughters then
-				for fn,p in pairs(def.daughters) do
-					local p = vector.add(pp,p)
+				for _,d in pairs(def.daughters) do
+					local p = vector.add(pp,d.pos)
 					ap = function(pos,def,pr,blockseed)
-						mcl_structures.place_schematic(pos, fn, rot, nil, true, "place_center_x,place_center_z",function()
+						mcl_structures.place_schematic(pos, d.files[pr:next(1,#d.files)], rot, nil, true, "place_center_x,place_center_z",function()
 							if def.loot then generate_loot(pp,def,pr,blockseed) end
 							if def.construct_nodes then construct_nodes(pp,def,pr,blockseed) end
 							if def.after_place then
 								def.after_place(pos,def,pr)
 							end
-							--ap(pos,def,pr,blockseed)
 						end,pr)
 					end
 				end