diff --git a/cf-lib/data/Item.lua b/cf-lib/data/Item.lua
index 5934a72..5727408 100644
--- a/cf-lib/data/Item.lua
+++ b/cf-lib/data/Item.lua
@@ -32,6 +32,7 @@ end
 --- Applies the item to the game
 function Item:apply()
     data:extend({ self.prototype })
+    return self
 end
 
 --- Assigns data to the item
diff --git a/cf-lib/data/Recipe.lua b/cf-lib/data/Recipe.lua
index 213aa14..87c48fd 100644
--- a/cf-lib/data/Recipe.lua
+++ b/cf-lib/data/Recipe.lua
@@ -32,6 +32,7 @@ end
 --- Applies the recipe to the game
 function Recipe:apply()
     data:extend({ self.prototype })
+    return self
 end
 
 --- Assigns data to the recipe
diff --git a/cf-lib/data/Technology.lua b/cf-lib/data/Technology.lua
index 13a1dd9..3dd3b48 100644
--- a/cf-lib/data/Technology.lua
+++ b/cf-lib/data/Technology.lua
@@ -40,6 +40,7 @@ end
 --- Applies the technology to the game
 function Technology:apply()
     data:extend({ self.prototype })
+    return self
 end
 
 --- Assigns data to the technology