diff --git a/entry/src/main/ets/common/CustomEngineKeyImpl.ets b/entry/src/main/ets/common/CustomEngineKeyImpl.ets
index 1473024..63437c3 100644
--- a/entry/src/main/ets/common/CustomEngineKeyImpl.ets
+++ b/entry/src/main/ets/common/CustomEngineKeyImpl.ets
@@ -12,6 +12,7 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
+ import { DownsampleStrategy } from '@ohos/imageknife';
 import { IEngineKey, ImageKnifeOption, PixelMapTransformation,SparkMD5 ,ImageKnifeRequestSource} from '@ohos/libraryimageknife';
 
 //全局自定义key demo