diff --git a/spot/twaalgos/split.cc b/spot/twaalgos/split.cc
index df4aa5863..6710a4101 100644
--- a/spot/twaalgos/split.cc
+++ b/spot/twaalgos/split.cc
@@ -28,8 +28,6 @@ namespace spot
   twa_graph_ptr
   split_2step(const const_twa_graph_ptr& aut, bdd input_bdd)
   {
-    if (!aut->acc().is_generalized_buchi())
-      throw std::runtime_error("2step_split only works on TGBA");
     auto split = make_twa_graph(aut->get_dict());
     split->copy_ap_of(aut);
     split->copy_acceptance_of(aut);
diff --git a/spot/twaalgos/split.hh b/spot/twaalgos/split.hh
index 80947ebfb..a3d070d37 100644
--- a/spot/twaalgos/split.hh
+++ b/spot/twaalgos/split.hh
@@ -48,7 +48,7 @@ namespace spot
   SPOT_API twa_graph_ptr
   split_2step(const const_twa_graph_ptr& aut, bdd input_bdd);
 
-  /// \brief the reverse of 2step_split
+  /// \brief the reverse of split_2step
   SPOT_API twa_graph_ptr
   unsplit_2step(const const_twa_graph_ptr& aut);
 }