diff --git a/src/native.js b/src/native.js
index c4413a1a6de..79a972371da 100644
--- a/src/native.js
+++ b/src/native.js
@@ -750,7 +750,11 @@ export function toLegacyResponse(ortbResponse, ortbRequest) {
     if (asset.title) {
       legacyResponse.title = asset.title.text;
     } else if (asset.img) {
-      legacyResponse[requestAsset.img.type === NATIVE_IMAGE_TYPES.MAIN ? 'image' : 'icon'] = asset.img.url;
+      legacyResponse[requestAsset.img.type === NATIVE_IMAGE_TYPES.MAIN ? 'image' : 'icon'] = {
+        url: asset.img.url,
+        width: asset.img.w,
+        height: asset.img.h
+      };
     } else if (asset.data) {
       legacyResponse[PREBID_NATIVE_DATA_KEYS_TO_ORTB_INVERSE[NATIVE_ASSET_TYPES_INVERSE[requestAsset.data.type]]] = asset.data.value;
     }
diff --git a/test/spec/auctionmanager_spec.js b/test/spec/auctionmanager_spec.js
index 03d0650effe..3e5a39e5ee5 100644
--- a/test/spec/auctionmanager_spec.js
+++ b/test/spec/auctionmanager_spec.js
@@ -1403,8 +1403,8 @@ describe('auctionmanager.js', function () {
         assert.equal(addedBid.native.title, 'Sample title')
         assert.equal(addedBid.native.sponsoredBy, 'Sample sponsoredBy')
         assert.equal(addedBid.native.clickUrl, 'http://www.click.com')
-        assert.equal(addedBid.native.image, 'https://www.example.com/image.png')
-        assert.equal(addedBid.native.icon, 'https://www.example.com/icon.png')
+        assert.equal(addedBid.native.image.url, 'https://www.example.com/image.png')
+        assert.equal(addedBid.native.icon.url, 'https://www.example.com/icon.png')
         assert.equal(addedBid.native.impressionTrackers[0], 'http://www.imptracker.com')
         assert.equal(addedBid.native.javascriptTrackers, '<script async src="http://www.jstracker.com/file.js"></script>')
       });