diff --git a/frontend/src/api/lessons.ts b/frontend/src/api/lessons.ts
index a8eddad..684200d 100644
--- a/frontend/src/api/lessons.ts
+++ b/frontend/src/api/lessons.ts
@@ -124,12 +124,12 @@ export function updateLesson(
   return apiPatch<Lesson>(`/api/lessons/${id}`, payload);
 }
 
-export function deleteLesson(
-  id: number,
-): Promise<{ deleted: number; deleted_batch_id: string }> {
-  return apiDelete<{ deleted: number; deleted_batch_id: string }>(
-    `/api/lessons/${id}`,
-  );
+/** Trash, not erase — recoverable. `apiDelete` discards the body, which is the
+ *  established shape here (snippets delete the same way): the batch id is in
+ *  the response, but no caller has needed it and inventing a second delete
+ *  helper to carry it would be the duplication, not the feature. */
+export function deleteLesson(id: number): Promise<void> {
+  return apiDelete(`/api/lessons/${id}`);
 }
 
 /** The lessons drawn FROM one record — the reverse of `learned_from`.