diff --git a/src/types/polygon.ts b/src/types/polygon.ts
index 878c4464b..e0daad615 100644
--- a/src/types/polygon.ts
+++ b/src/types/polygon.ts
@@ -8,5 +8,4 @@ export type Polygon = {
    * Points is in image index space.
    */
   points: Array<Vector3>;
-  movePoint: Vector3;
 } & AnnotationTool<PolygonID>;