diff --git a/packages/api/src/services/highlights.ts b/packages/api/src/services/highlights.ts
index 57bb417b1..92fedc303 100644
--- a/packages/api/src/services/highlights.ts
+++ b/packages/api/src/services/highlights.ts
@@ -68,9 +68,8 @@ export const createHighlight = async (
     EntityType.HIGHLIGHT,
     {
       id: libraryItemId,
-      slug: newHighlight.libraryItem.slug,
-      originalUrl: newHighlight.libraryItem.originalUrl,
-      thumbnail: newHighlight.libraryItem.thumbnail,
+      originalUrl: newHighlight.libraryItem.originalUrl, // for Readwise
+      thumbnail: newHighlight.libraryItem.thumbnail, // for Readwise
       highlights: [cleanData],
     },
     userId
@@ -122,7 +121,6 @@ export const mergeHighlights = async (
     EntityType.HIGHLIGHT,
     {
       id: libraryItemId,
-      slug: newHighlight.libraryItem.slug,
       originalUrl: newHighlight.libraryItem.originalUrl,
       thumbnail: newHighlight.libraryItem.thumbnail,
       highlights: [newHighlight],
diff --git a/packages/api/src/services/integrations/readwise.ts b/packages/api/src/services/integrations/readwise.ts
index 001820837..129144ea1 100644
--- a/packages/api/src/services/integrations/readwise.ts
+++ b/packages/api/src/services/integrations/readwise.ts
@@ -101,14 +101,14 @@ export class ReadwiseClient implements IntegrationClient {
               text: highlight.quote,
               title: item.title,
               author: item.author || undefined,
-              highlight_url: getHighlightUrl(item.slug as string, highlight.id),
+              highlight_url: getHighlightUrl(item.id, highlight.id),
               highlighted_at: highlight.createdAt as string | undefined,
               category,
               image_url: item.thumbnail || undefined,
               location_type: 'order',
               note: highlight.annotation || undefined,
               source_type: 'omnivore',
-              source_url: item.originalUrl as string,
+              source_url: item.originalUrl,
             }
           })
       : []