diff --git a/spine-unity/Assets/Spine/Runtime/spine-unity/SkeletonExtensions.cs b/spine-unity/Assets/Spine/Runtime/spine-unity/SkeletonExtensions.cs
index 742b009b1..9c1e958f9 100644
--- a/spine-unity/Assets/Spine/Runtime/spine-unity/SkeletonExtensions.cs
+++ b/spine-unity/Assets/Spine/Runtime/spine-unity/SkeletonExtensions.cs
@@ -507,7 +507,7 @@ namespace Spine {
 				skeleton.slots.Items[i].SetColorToSetupPose();
 				break;
 			case TimelineType.Deform:
-				skeleton.slots.Items[i].attachmentVertices.Clear();
+				skeleton.slots.Items[i].Deform.Clear();
 				break;
 			
 			// Skeleton