diff --git a/types/three/examples/jsm/objects/SkyMesh.d.ts b/types/three/examples/jsm/objects/SkyMesh.d.ts
index a092ff0da..be7f71535 100644
--- a/types/three/examples/jsm/objects/SkyMesh.d.ts
+++ b/types/three/examples/jsm/objects/SkyMesh.d.ts
@@ -8,8 +8,13 @@ declare class SkyMesh extends Mesh<BoxGeometry, NodeMaterial> {
     sunPosition: UniformNode<Vector3>;
     upUniform: UniformNode<Vector3>;
 
+    /**
+     * @deprecated
+     */
     readonly isSky: true;
 
+    readonly isSkyMesh: true;
+
     constructor();
 }