diff --git a/src/app/bitstream-page/edit-bitstream-page/edit-bitstream-page.component.ts b/src/app/bitstream-page/edit-bitstream-page/edit-bitstream-page.component.ts
index df8f285a6a..d84b8ae4e6 100644
--- a/src/app/bitstream-page/edit-bitstream-page/edit-bitstream-page.component.ts
+++ b/src/app/bitstream-page/edit-bitstream-page/edit-bitstream-page.component.ts
@@ -371,7 +371,7 @@ export class EditBitstreamPageComponent implements OnInit, OnDestroy {
    * Path to patch primary bitstream on the bundle
    * @private
    */
-  private readonly primaryBitstreamPath = '/primarybitstream';
+  private readonly primaryBitstreamPath = '/primaryBitstreamUUID';
 
   constructor(private route: ActivatedRoute,
               private router: Router,
diff --git a/src/app/core/shared/bundle.model.ts b/src/app/core/shared/bundle.model.ts
index 72c466d2d6..bcaa582703 100644
--- a/src/app/core/shared/bundle.model.ts
+++ b/src/app/core/shared/bundle.model.ts
@@ -1,4 +1,4 @@
-import { autoserializeAs, deserialize, inheritSerialization } from 'cerialize';
+import { autoserialize, deserialize, inheritSerialization } from 'cerialize';
 
 import { Observable } from 'rxjs';
 
@@ -30,9 +30,9 @@ export class Bundle extends DSpaceObject {
   };
 
   /**
-   * The ID of the primaryBitstream of this Bundle
+   * The UUID of the primaryBitstream of this Bundle
    */
-  @autoserializeAs('primarybitstream')
+  @autoserialize
   primaryBitstreamUUID: string;
 
   /**