diff --git a/spine-csharp/src/TransformConstraint.cs b/spine-csharp/src/TransformConstraint.cs
index 911aa5075..4239781a7 100644
--- a/spine-csharp/src/TransformConstraint.cs
+++ b/spine-csharp/src/TransformConstraint.cs
@@ -62,6 +62,7 @@ namespace Spine {
 			rotateMix = data.rotateMix;
 			scaleMix = data.scaleMix;
 			shearMix = data.shearMix;
+			offsetRotation = data.offsetRotation;
 			offsetX = data.offsetX;
 			offsetY = data.offsetY;
 			offsetScaleX = data.offsetScaleX;