diff --git a/server/services/backlinks.js b/server/services/backlinks.js
index 2fe1686c..e6f4720f 100644
--- a/server/services/backlinks.js
+++ b/server/services/backlinks.js
@@ -55,7 +55,9 @@ export default class Backlinks {
         await Promise.all(
           addedLinkIds.map(async (linkId) => {
             const linkedDocument = await Document.findByPk(linkId);
-            if (linkedDocument.id === event.documentId) return;
+            if (!linkedDocument || linkedDocument.id === event.documentId) {
+              return;
+            }
 
             await Backlink.findOrCreate({
               where: {