diff --git a/src/plugins/wp/Generator.ml b/src/plugins/wp/Generator.ml
index 2af03b61f95049479258ddd16bec9713d7ef2f2b..28ffe5d62128f381219d524760d8db09c648547c 100644
--- a/src/plugins/wp/Generator.ml
+++ b/src/plugins/wp/Generator.ml
@@ -64,7 +64,7 @@ let create
     () : Wpo.generator =
   let default f = function Some v -> v | None -> f () in
   let dump = default Wp_parameters.Dump.get dump in
-  let legacy = default Wp_parameters.Dump.get legacy in
+  let legacy = default Wp_parameters.Legacy.get legacy in
   let driver = default Driver.load_driver driver in
   let setup = default user_setup setup in
   if legacy then
diff --git a/src/plugins/wp/Generator.mli b/src/plugins/wp/Generator.mli
index fc70c5d2fed6f9d4361d3f53313b271b5dcd990e..ef3b2b2dcee2e94f35251f971a83798e795bf564 100644
--- a/src/plugins/wp/Generator.mli
+++ b/src/plugins/wp/Generator.mli
@@ -20,9 +20,6 @@
 (*                                                                        *)
 (*****************************************t*********************************)
 
-open Cil_types
-open Wp_parameters
-
 (* -------------------------------------------------------------------------- *)
 (* --- WP Computer (main entry points)                                    --- *)
 (* -------------------------------------------------------------------------- *)