diff --git a/src/public/app/entities/fattachment.ts b/src/public/app/entities/fattachment.ts
index 499e80731..484b55705 100644
--- a/src/public/app/entities/fattachment.ts
+++ b/src/public/app/entities/fattachment.ts
@@ -61,6 +61,10 @@ class FAttachment {
       return this.ownerId;
     }
 
+    getUtcDateScheduledForErasureSince() {
+      return this.utcDateScheduledForErasureSince;
+    }
+
     async getBlob() {
         return await this.froca.getBlob("attachments", this.attachmentId);
     }
diff --git a/src/public/app/widgets/attachment_detail.ts b/src/public/app/widgets/attachment_detail.ts
index e723c82b9..5b37a94c2 100644
--- a/src/public/app/widgets/attachment_detail.ts
+++ b/src/public/app/widgets/attachment_detail.ts
@@ -140,7 +140,7 @@ export default class AttachmentDetailWidget extends BasicWidget {
         }
 
         const $deletionWarning = this.$wrapper.find(".attachment-deletion-warning");
-        const { utcDateScheduledForErasureSince } = this.attachment;
+        const utcDateScheduledForErasureSince = this.attachment.getUtcDateScheduledForErasureSince();
 
         if (utcDateScheduledForErasureSince) {
             this.$wrapper.addClass("scheduled-for-deletion");