diff --git a/017_science/data-updates.lua b/017_science/data-updates.lua
index 6732b7c..0070aad 100644
--- a/017_science/data-updates.lua
+++ b/017_science/data-updates.lua
@@ -10,6 +10,7 @@ for _, mod in pairs(data.raw.module) do
 					table.insert(limitation, "17-chemical-science-pack")
 					table.insert(limitation, "17-production-science-pack")
 					table.insert(limitation, "17-utility-science-pack")
+					table.insert(limitation, "17-low-density-structure")					
 				end
 			end
 		end
diff --git a/017_science/data.lua b/017_science/data.lua
index e94e019..01e0c83 100644
--- a/017_science/data.lua
+++ b/017_science/data.lua
@@ -4,4 +4,13 @@ table.insert(data.raw["technology"]["military-2"].effects, {type = "unlock-recip
 table.insert(data.raw["technology"]["advanced-electronics"].effects, {type = "unlock-recipe",recipe = "17-chemical-science-pack"})
 table.insert(data.raw["technology"]["advanced-material-processing-2"].effects, {type = "unlock-recipe",recipe = "17-production-science-pack"})
 table.insert(data.raw["technology"]["advanced-electronics-2"].effects, {type = "unlock-recipe",recipe = "17-utility-science-pack"})
-table.insert(data.raw["technology"]["advanced-electronics-2"].effects, {type = "unlock-recipe",recipe = "low-density-structure"}) --LDS unlock for pre-rocket bases
\ No newline at end of file
+
+table.insert(data.raw["technology"]["advanced-electronics-2"].effects, {type = "unlock-recipe",recipe = "low-density-structure"})
+table.insert(data.raw["technology"]["advanced-electronics-2"].effects, {type = "unlock-recipe",recipe = "17-low-density-structure"}) --LDS unlock for pre-rocket bases
+
+local effects = data.raw["technology"]["rocket-silo"].effects --remove the duplicate LDS effect in rocket-silo research
+for _=1, #effects do
+	if effects[_].type == "unlock-recipe" and effects[_].recipe == "low-density-structure" then
+		effects[_] = nil
+	end
+end
\ No newline at end of file
diff --git a/017_science/graphics/icons/LDS.png b/017_science/graphics/icons/LDS.png
new file mode 100644
index 0000000..3327afb
Binary files /dev/null and b/017_science/graphics/icons/LDS.png differ
diff --git a/017_science/info.json b/017_science/info.json
index fc02c4d..75d3095 100644
--- a/017_science/info.json
+++ b/017_science/info.json
@@ -1,6 +1,6 @@
 {
   "name": "017_science",
-  "version": "0.0.3",
+  "version": "0.0.4",
   "factorio_version": "0.16",
   "title": "0.17 science conversion",
   "author": "npc_strider(morley376)",
diff --git a/017_science/migrations/2019-01-03_017_science_0.0.4.lua b/017_science/migrations/2019-01-03_017_science_0.0.4.lua
new file mode 100644
index 0000000..2471261
--- /dev/null
+++ b/017_science/migrations/2019-01-03_017_science_0.0.4.lua
@@ -0,0 +1,14 @@
+for i, force in pairs(game.forces) do 
+	if force.technologies["advanced-electronics-2"].researched then 
+		force.recipes["low-density-structure"].enabled = true
+		force.recipes["17-low-density-structure"].enabled = true
+	end
+end
+
+for i, force in pairs(game.forces) do 
+	force.reset_recipes()
+end
+
+for i, force in pairs(game.forces) do 
+	force.reset_technologies()
+end
\ No newline at end of file
diff --git a/017_science/migrations/migrations.lua b/017_science/migrations/migrations.lua
index a5c0820..50b1310 100644
--- a/017_science/migrations/migrations.lua
+++ b/017_science/migrations/migrations.lua
@@ -18,6 +18,7 @@ for i, force in pairs(game.forces) do
 	end
 	if force.technologies["advanced-electronics-2"].researched then 
 		force.recipes["low-density-structure"].enabled = true
+		force.recipes["17-low-density-structure"].enabled = true
 		force.recipes["17-utility-science-pack"].enabled = true
 	end
 end
\ No newline at end of file
diff --git a/017_science/recipe.lua b/017_science/recipe.lua
index e5dc7de..cd7a2c4 100644
--- a/017_science/recipe.lua
+++ b/017_science/recipe.lua
@@ -91,11 +91,11 @@ data:extend(
 	--LDS changes
 	{		
 		type = "recipe",
-		name = "low-density-structure",
+		name = "17-low-density-structure",
 		category = "crafting",
 		normal =
 		{
-			energy_required = 30,
+			energy_required = 20, --30
 			enabled = false,
 			ingredients =
 			{
@@ -107,7 +107,7 @@ data:extend(
 		},
 		expensive =
 		{
-			energy_required = 30,
+			energy_required = 20, --30
 			enabled = false,
 			ingredients =
 			{
@@ -116,6 +116,8 @@ data:extend(
 				{"plastic-bar", 10}
 			},
 			result= "low-density-structure"
-		}
+		},
+		icon = "__017_science__/graphics/icons/LDS.png",
+		icon_size = 32
 	}
 })
\ No newline at end of file
diff --git a/017_science_migration/migrations/migrations.json b/017_science_migration/migrations/migrations.json
index 60fd79c..9cc5f3a 100644
--- a/017_science_migration/migrations/migrations.json
+++ b/017_science_migration/migrations/migrations.json
@@ -5,5 +5,6 @@
 		["17-chemical-science-pack", "chemical-science-pack"],
 		["17-production-science-pack", "production-science-pack"],
 		["17-utility-science-pack", "utility-science-pack"]
+		["17-low-density-structure", "low-density-structure"]
 	]
 }
\ No newline at end of file
diff --git a/mod-list.json b/mod-list.json
index e8c7c66..6bd0812 100644
--- a/mod-list.json
+++ b/mod-list.json
@@ -10,7 +10,7 @@
     },
     {
       "name": "017_science_migration",
-      "enabled": true
+      "enabled": false
     }
   ]
 }