diff --git a/src/dune_rules/dune_file.ml b/src/dune_rules/dune_file.ml
index c8ef65cf6b8..65c3f0f96d1 100644
--- a/src/dune_rules/dune_file.ml
+++ b/src/dune_rules/dune_file.ml
@@ -2159,7 +2159,7 @@ module Stanzas = struct
 
   type Stanza.t += Include of Loc.t * string
 
-  type constructors = (string * Stanza.t list Dune_lang.Decoder.t) list
+  type constructors = Stanza.Parser.t list
 
   let stanzas : constructors =
     [ ( "library"