diff --git a/src/dune_rules/compilation_context.ml b/src/dune_rules/compilation_context.ml
index 3694e05b502..3c1715c7586 100644
--- a/src/dune_rules/compilation_context.ml
+++ b/src/dune_rules/compilation_context.ml
@@ -227,5 +227,4 @@ let without_bin_annot t = { t with bin_annot = false }
 let root_module_entries t : Module_name.t list Or_exn.t =
   let open Result.O in
   let* requires = t.requires_compile in
-  let local_lib = Fdecl.get Super_context.modules_of_lib t.super_context in
-  Result.List.concat_map requires ~f:(Lib.entry_module_names ~local_lib)
+  Result.List.concat_map requires ~f:Lib.entry_module_names
diff --git a/src/dune_rules/lib.ml b/src/dune_rules/lib.ml
index 0b20f51d335..6fc399d1d3d 100644
--- a/src/dune_rules/lib.ml
+++ b/src/dune_rules/lib.ml
@@ -368,13 +368,13 @@ let main_module_name t =
     | This x -> x
     | From _ -> assert false )
 
-let entry_module_names t ~local_lib =
+let entry_module_names t =
   match Lib_info.entry_modules t.info with
   | External d -> d
   | Local ->
-    let info = Lib_info.as_local_exn t.info in
-    let modules = local_lib ~dir:(Lib_info.src_dir info) ~name:t.name in
-    Ok (Modules.entry_modules modules |> List.map ~f:Module.name)
+    Ok
+      ( Option.value_exn t.modules |> Lazy.force |> Modules.entry_modules
+      |> List.map ~f:Module.name )
 
 let wrapped t =
   let wrapped = Lib_info.wrapped t.info in
diff --git a/src/dune_rules/lib.mli b/src/dune_rules/lib.mli
index f87a955ff1a..5b02e92b758 100644
--- a/src/dune_rules/lib.mli
+++ b/src/dune_rules/lib.mli
@@ -27,10 +27,7 @@ val info : t -> Path.t Lib_info.t
 
 val main_module_name : t -> Module_name.t option Or_exn.t
 
-val entry_module_names :
-     t
-  -> local_lib:(dir:Path.Build.t -> name:Lib_name.t -> Modules.t)
-  -> Module_name.t list Or_exn.t
+val entry_module_names : t -> Module_name.t list Or_exn.t
 
 val wrapped : t -> Wrapped.t option Or_exn.t