diff --git a/server/providers/CustomProviderAdapter.js b/server/providers/CustomProviderAdapter.js
index 6841eb8c..91b34b0d 100644
--- a/server/providers/CustomProviderAdapter.js
+++ b/server/providers/CustomProviderAdapter.js
@@ -78,7 +78,7 @@ class CustomProviderAdapter {
         narrator,
         publisher,
         publishedYear,
-        description: htmlSanitizer.sanitize(description),
+        description: typeof description === 'string' ? htmlSanitizer.sanitize(description) : description,
         cover,
         isbn,
         asin,