diff --git a/cache/src/main/java/net/runelite/cache/definitions/StructDefinition.java b/cache/src/main/java/net/runelite/cache/definitions/StructDefinition.java
index b9e9f5131b..455ce9ea5e 100644
--- a/cache/src/main/java/net/runelite/cache/definitions/StructDefinition.java
+++ b/cache/src/main/java/net/runelite/cache/definitions/StructDefinition.java
@@ -30,5 +30,6 @@ import lombok.Data;
 @Data
 public class StructDefinition
 {
+	public final int id;
 	public Map<Integer, Object> params = null;
 }
diff --git a/cache/src/main/java/net/runelite/cache/definitions/loaders/StructLoader.java b/cache/src/main/java/net/runelite/cache/definitions/loaders/StructLoader.java
index 664a6bc042..4137da8f37 100644
--- a/cache/src/main/java/net/runelite/cache/definitions/loaders/StructLoader.java
+++ b/cache/src/main/java/net/runelite/cache/definitions/loaders/StructLoader.java
@@ -30,10 +30,9 @@ import net.runelite.cache.io.InputStream;
 
 public class StructLoader
 {
-
 	public StructDefinition load(int id, byte[] b)
 	{
-		StructDefinition def = new StructDefinition();
+		StructDefinition def = new StructDefinition(id);
 		InputStream is = new InputStream(b);
 
 		while (true)