diff --git a/packages/api/src/services/library_item.ts b/packages/api/src/services/library_item.ts
index 997870c4e..242365cf4 100644
--- a/packages/api/src/services/library_item.ts
+++ b/packages/api/src/services/library_item.ts
@@ -148,8 +148,13 @@ const getColumnName = (field: string) => {
     case 'updated':
     case 'published':
       return `${lowerCaseField}_at`
-    default:
+    case 'author':
+    case 'title':
+    case 'description':
+    case 'note':
       return lowerCaseField
+    default:
+      throw new Error(`Unexpected field: ${field}`)
   }
 }