diff --git a/api/graphics3d/SceneTypes.d.ts b/api/graphics3d/SceneTypes.d.ts
index 0da2e5f1594ca9248980528d370d5b3ff57d0be9..1ba9410b68cc5d28ae2a26250e47462438b5ff50 100644
--- a/api/graphics3d/SceneTypes.d.ts
+++ b/api/graphics3d/SceneTypes.d.ts
@@ -336,7 +336,7 @@ export enum GeometryType {
  * @syscap SystemCapability.ArkUi.Graphics3D
  * @since 18
  */
-export abstract class GeometryDefinition {
+export declare abstract class GeometryDefinition {
   /**
    * Which geometry shape to interpret from this definition.
    * 
@@ -380,7 +380,7 @@ export enum PrimitiveTopology {
  * @syscap SystemCapability.ArkUi.Graphics3D
  * @since 18
  */
-export class CustomGeometry extends GeometryDefinition {
+export declare class CustomGeometry extends GeometryDefinition {
   /**
    * How to form mesh triangles from the indexed vertices.
    * 
@@ -454,7 +454,7 @@ export class CustomGeometry extends GeometryDefinition {
  * @syscap SystemCapability.ArkUi.Graphics3D
  * @since 18
  */
-export class CubeGeometry extends GeometryDefinition {
+export declare class CubeGeometry extends GeometryDefinition {
   /**
    * The width, height and depth of the cube.
    * 
@@ -472,7 +472,7 @@ export class CubeGeometry extends GeometryDefinition {
  * @syscap SystemCapability.ArkUi.Graphics3D
  * @since 18
  */
-export class PlaneGeometry extends GeometryDefinition {
+export declare class PlaneGeometry extends GeometryDefinition {
   /**
    * The width and length of the plane.
    *