diff --git a/docs/package.md b/docs/package.md
index bd2a416..ded9f7a 100644
--- a/docs/package.md
+++ b/docs/package.md
@@ -11,7 +11,6 @@ new Package({
     assetFile: yourAssetFile, // read details after this code block
     assetName: 'model.gltf', // the AR asset filename, including the file extension
     assetParam: {
-        isValid: true, // whether the scale/size parameters are correct or not (if you don't know what this is, set to true)
         scale: 1.0, // scale of the asset
         size: { // sizes of the asset, unused
             width: 1.0,
@@ -88,7 +87,6 @@ const package = new Package({
     assetFile: base64Asset,
     assetName: file.name,
     assetParam: {
-        isValid: true,
         scale: 1.0
     },
     markerPatt: textPatt
diff --git a/src/modules/package/Package.js b/src/modules/package/Package.js
index c72f927..bf9fb1f 100644
--- a/src/modules/package/Package.js
+++ b/src/modules/package/Package.js
@@ -23,13 +23,11 @@ export const PACKAGE_GITHUB = 'github';
 
 /**
  * @typedef AssetParam
- * @property {boolean} isValid
  * @property {Number} scale
  * @property {{width: Number, height: Number, depth: Number}} size
  * @property {Array<{latitude: Number, longitude: Number}>} locations - an array of latitude/longitude locations, for location based AR
  */
 const defaultAssetParam = {
-    isValid: true,
     scale: 1.0,
     size: {
         width: 1.0,
@@ -56,11 +54,7 @@ export class Package {
         this.assetFile = config.assetFile;
         this.assetName = config.assetName;
         this.assetParam = config.assetParam || defaultAssetParam;
-        
-        if (!this.assetParam.isValid) {
-            throw new Error('Asset parameters are not valid');
-        }
-        
+
         this.config = config;
     }