diff --git a/spine-monogame/spine-monogame/src/SkeletonRenderer.cs b/spine-monogame/spine-monogame/src/SkeletonRenderer.cs
index 1bb59c955..4945b81fd 100644
--- a/spine-monogame/spine-monogame/src/SkeletonRenderer.cs
+++ b/spine-monogame/spine-monogame/src/SkeletonRenderer.cs
@@ -212,7 +212,7 @@ namespace Spine {
 				// clip
 				float[] usedVertices = vertices;
 				if (clipper.IsClipping) {
-					clipper.ClipTriangles(vertices, indices, indicesCount, uvs);
+					clipper.ClipTriangles(usedVertices, indices, indicesCount, uvs);
 					usedVertices = clipper.ClippedVertices.Items;
 					verticesCount = clipper.ClippedVertices.Count >> 1;
 					indices = clipper.ClippedTriangles.Items;