diff --git a/lib/properties/cover-property.js b/lib/properties/cover-property.js
index c4d62f6..13f58b5 100644
--- a/lib/properties/cover-property.js
+++ b/lib/properties/cover-property.js
@@ -18,6 +18,12 @@ class CoverProperty extends Property {
           mediaType: '',
         },
       ],
+      forms: [
+        {
+          href: '',
+          contentType: '',
+        },
+      ],
     });
     this.updateImage(this.device.adapter.config.altcover);
   }
@@ -36,17 +42,32 @@ class CoverProperty extends Property {
 
   updateImage(url) {
     let filename;
-    if (url.toLowerCase().endsWith('.png')) {
-      this.links[0].mediaType = 'image/png';
-      filename = 'cover.png';
-    } else if (url.toLowerCase().endsWith('.gif')) {
-      this.links[0].mediaType = 'image/gif';
-      filename = 'cover.gif';
-    } else {
-      this.links[0].mediaType = 'image/jpeg';
-      filename = 'cover.jpg';
+    if (this.links) {
+      if (url.toLowerCase().endsWith('.png')) {
+        this.links[0].mediaType = 'image/png';
+        filename = 'cover.png';
+      } else if (url.toLowerCase().endsWith('.gif')) {
+        this.links[0].mediaType = 'image/gif';
+        filename = 'cover.gif';
+      } else {
+        this.links[0].mediaType = 'image/jpeg';
+        filename = 'cover.jpg';
+      }
+      this.links[0].href = `/media/frontier-silicon/${this.device.id}/${filename}`;
+    }
+    if (this.forms) {
+      if (url.toLowerCase().endsWith('.png')) {
+        this.forms[0].contentType = 'image/png';
+        filename = 'cover.png';
+      } else if (url.toLowerCase().endsWith('.gif')) {
+        this.forms[0].contentType = 'image/gif';
+        filename = 'cover.gif';
+      } else {
+        this.forms[0].contentType = 'image/jpeg';
+        filename = 'cover.jpg';
+      }
+      this.forms[0].href = `/media/frontier-silicon/${this.device.id}/${filename}`;
     }
-    this.links[0].href = `/media/frontier-silicon/${this.device.id}/${filename}`;
     saveImageTo(url, path.join(this.device.mediaDir, filename), () => {
       this.device.adapter.handleDeviceUpdated(this.device);
     });