diff --git a/compiler/heptagon/parsing/hept_scoping.ml b/compiler/heptagon/parsing/hept_scoping.ml
index 81cacc6..d83ca19 100644
--- a/compiler/heptagon/parsing/hept_scoping.ml
+++ b/compiler/heptagon/parsing/hept_scoping.ml
@@ -200,10 +200,7 @@ let rec translate_static_exp se =
 and translate_static_exp_desc loc ed =
   let t = translate_static_exp in
   match ed with
-    | Svar (Q q) ->
-        let q = try qualify_const S.empty (Q q)
-                with Not_static -> message loc (Equal_notfound("constant", q))
-        in Types.Svar q
+    | Svar (Q q) -> Types.Svar q
     | Svar (ToQ _) -> assert false
     | Sint i -> Types.Sint i
     | Sfloat f -> Types.Sfloat f
diff --git a/compiler/heptagon/parsing/hept_static_scoping.ml b/compiler/heptagon/parsing/hept_static_scoping.ml
index d6f2cc4..0f150e2 100644
--- a/compiler/heptagon/parsing/hept_static_scoping.ml
+++ b/compiler/heptagon/parsing/hept_static_scoping.ml
@@ -13,6 +13,14 @@ let assert_se e = match e.e_desc with
   | Econst se -> se
   | _ -> raise Not_static
 
+let static_exp funs local_const se =
+  (match se.se_desc with
+    | Svar (Q q) ->
+        if not (Modules.check_const q) then
+          Error.message se.se_loc (Error.Equal_notfound("constant", q))
+    | _ -> ());
+  Hept_parsetree_mapfold.static_exp funs local_const se
+
 (** convention : static params are set as the first static args,
     op<a1,a2> (a3) == op <a1> (a2,a3) == op (a1,a2,a3) *)
 let static_app_from_app app args =
@@ -63,7 +71,7 @@ let const_dec funs local_const cd =
 
 let program p =
   let funs = { Hept_parsetree_mapfold.defaults
-               with node_dec = node; exp = exp; const_dec = const_dec } in
+               with node_dec = node; exp = exp; static_exp = static_exp; const_dec = const_dec } in
   let p, _ = Hept_parsetree_mapfold.program_it funs Names.S.empty p in
   p
 
@@ -73,4 +81,4 @@ let interface i =
                with node_dec = node; exp = exp; const_dec = const_dec } in
   let i, _ = Hept_parsetree_mapfold.interface_it funs Names.S.empty i in
   i
-*)
\ No newline at end of file
+*)