diff --git a/backend/internal/service/pool_service.go b/backend/internal/service/pool_service.go
index 307175d..66555e3 100644
--- a/backend/internal/service/pool_service.go
+++ b/backend/internal/service/pool_service.go
@@ -247,5 +247,10 @@ func (s *PoolService) Reorder(ctx context.Context, poolID uuid.UUID, fileIDs []u
 	if err := s.authorizeEdit(ctx, poolID); err != nil {
 		return err
 	}
-	return s.pools.Reorder(ctx, poolID, fileIDs)
+	if err := s.pools.Reorder(ctx, poolID, fileIDs); err != nil {
+		return err
+	}
+	objType := poolObjectType
+	_ = s.audit.Log(ctx, "file_pool_reorder", &objType, &poolID, map[string]any{"count": len(fileIDs)})
+	return nil
 }
diff --git a/backend/migrations/007_seed_data.sql b/backend/migrations/007_seed_data.sql
index 2486029..c58ed9f 100644
--- a/backend/migrations/007_seed_data.sql
+++ b/backend/migrations/007_seed_data.sql
@@ -30,7 +30,7 @@ INSERT INTO activity.action_types (name) VALUES
     ('pool_create'), ('pool_edit'), ('pool_delete'),
     -- Relations
     ('file_tag_add'), ('file_tag_remove'),
-    ('file_pool_add'), ('file_pool_remove'),
+    ('file_pool_add'), ('file_pool_remove'), ('file_pool_reorder'),
     -- ACL
     ('acl_change'),
     -- Admin