diff --git a/spine-csharp/src/SkeletonBinary.cs b/spine-csharp/src/SkeletonBinary.cs
index 9a6a94825..9d575cd89 100644
--- a/spine-csharp/src/SkeletonBinary.cs
+++ b/spine-csharp/src/SkeletonBinary.cs
@@ -38,7 +38,6 @@ using Windows.Storage;
 #endif
 
 namespace Spine {
-	using static Spine.TransformConstraintData;
 	using FromProperty = TransformConstraintData.FromProperty;
 	using FromRotate = TransformConstraintData.FromRotate;
 	using FromScaleX = TransformConstraintData.FromScaleX;
diff --git a/spine-csharp/src/SkeletonJson.cs b/spine-csharp/src/SkeletonJson.cs
index aff91efd4..6c0076d83 100644
--- a/spine-csharp/src/SkeletonJson.cs
+++ b/spine-csharp/src/SkeletonJson.cs
@@ -42,7 +42,6 @@ using Windows.Storage;
 #endif
 
 namespace Spine {
-	using static Spine.TransformConstraintData;
 #if IS_UNITY
 	using Color = UnityEngine.Color;
 #endif