diff --git a/src/main/java/ca/blarg/gdx/assets/textureatlas/JsonTextureAtlasDefinition.java b/src/main/java/ca/blarg/gdx/assets/textureatlas/JsonTextureAtlasDefinition.java
index 3a1fe74..d5ab1ae 100644
--- a/src/main/java/ca/blarg/gdx/assets/textureatlas/JsonTextureAtlasDefinition.java
+++ b/src/main/java/ca/blarg/gdx/assets/textureatlas/JsonTextureAtlasDefinition.java
@@ -4,6 +4,7 @@ import java.util.ArrayList;
 
 public class JsonTextureAtlasDefinition {
 	public String texture;
+	public String materialMapping;
 	public ArrayList<JsonTextureAtlasTile> tiles;
 	public ArrayList<JsonTextureAtlasAnimation> animations;
 }