diff --git a/src/@ionic-native/core/decorators.ts b/src/@ionic-native/core/decorators.ts
index 797b9382d..e0983440c 100644
--- a/src/@ionic-native/core/decorators.ts
+++ b/src/@ionic-native/core/decorators.ts
@@ -259,6 +259,7 @@ export function CordovaInstance(opts: any = {}) {
  */
 export function CordovaProperty(target: any, key: string) {
   Object.defineProperty(target, key, {
+    enumerable: true,
     get: () => {
       if (checkAvailability(target, key) === true) {
         return getPlugin(target.constructor.getPluginRef())[key];
@@ -282,6 +283,7 @@ export function CordovaProperty(target: any, key: string) {
  */
 export function InstanceProperty(target: any, key: string) {
   Object.defineProperty(target, key, {
+    enumerable: true,
     get: function(){
       return this._objectInstance[key];
     },
diff --git a/src/@ionic-native/plugins/camera-preview/index.ts b/src/@ionic-native/plugins/camera-preview/index.ts
index 5b4a6fea9..36365ce52 100644
--- a/src/@ionic-native/plugins/camera-preview/index.ts
+++ b/src/@ionic-native/plugins/camera-preview/index.ts
@@ -57,7 +57,7 @@ export interface CameraPreviewPictureOptions {
  *
  * @usage
  * ```typescript
- * import { CameraPreview, PictureOptions, CameraPreviewOptions, CameraPreviewDimensions } from 'ionic-native';
+ * import { CameraPreview, PictureOptions, CameraPreviewOptions, CameraPreviewDimensions } from '@ionic-native/camera-preview';
  *
  * constructor(private cameraPreview: CameraPreview) { }
  *
@@ -211,7 +211,7 @@ export class CameraPreview {
 
   /**
    * Set the zoom (Android)
-   * @param zoom {number} Zoom value
+   * @param [zoom] {number} Zoom value
    * @return {Promise<any>}
    */
   @Cordova({
@@ -223,7 +223,7 @@ export class CameraPreview {
 
   /**
    * Set the preview Size
-   * @param dimensions {CameraPreviewDimensions}
+   * @param [dimensions] {CameraPreviewDimensions}
    * @return {Promise<any>}
    */
   @Cordova({
@@ -235,7 +235,7 @@ export class CameraPreview {
 
   /**
    * Set the flashmode
-   * @param flashMode {string} 'off' (iOS & Android), 'on' (iOS & Android), 'auto' (iOS & Android), 'torch' (Android)
+   * @param [flashMode] {string} 'off' (iOS & Android), 'on' (iOS & Android), 'auto' (iOS & Android), 'torch' (Android)
    * @return {Promise<any>}
    */
   @Cordova({