diff --git a/src/main/java/ninja/bytecode/iris/object/DecorationPart.java b/src/main/java/ninja/bytecode/iris/object/DecorationPart.java
new file mode 100644
index 000000000..cd141fb2e
--- /dev/null
+++ b/src/main/java/ninja/bytecode/iris/object/DecorationPart.java
@@ -0,0 +1,7 @@
+package ninja.bytecode.iris.object;
+
+public enum DecorationPart
+{
+	NONE,
+	SHORE_LINE,
+}
diff --git a/src/main/java/ninja/bytecode/iris/object/IrisBiomeDecorator.java b/src/main/java/ninja/bytecode/iris/object/IrisBiomeDecorator.java
index a4fddcc23..9887eb07e 100644
--- a/src/main/java/ninja/bytecode/iris/object/IrisBiomeDecorator.java
+++ b/src/main/java/ninja/bytecode/iris/object/IrisBiomeDecorator.java
@@ -23,6 +23,9 @@ public class IrisBiomeDecorator
 	@Desc("If this decorator has a height more than 1 this changes how it picks the height between your maxes. Scatter = random, Wispy = wavy heights")
 	private Dispersion verticalVariance = Dispersion.SCATTER;
 
+	@Desc("Tells iris where this decoration is a part of. I.e. SHORE_LINE")
+	private DecorationPart partOf = DecorationPart.NONE;
+
 	@Desc("The minimum repeat stack height (setting to 3 would stack 3 of <block> on top of each other")
 	private int stackMin = 1;