diff --git a/src/backends/C/c_backend_makefile.ml b/src/backends/C/c_backend_makefile.ml
index 38f7c80a1d9a59010d5b4c10349d33b6670c37f3..0a7820f39222299107dce4d6bee11472a1cb314a 100644
--- a/src/backends/C/c_backend_makefile.ml
+++ b/src/backends/C/c_backend_makefile.ml
@@ -63,7 +63,7 @@ let pp_print_dependencies arrow_suffix fmt deps =
        List.map
          (fun dep ->
            (if dep.local then dep.name
-           else Version.include_path ^ "/" ^ dep.name)
+           else Sites_paths.include_path ^ "/" ^ dep.name)
            ^ ".c")
          compiled_deps
   in
@@ -136,7 +136,7 @@ functor
         binname
         Sys.executable_name
         (Filename.dirname (Filename.dirname Sys.executable_name))
-        Version.include_path
+        Sites_paths.include_path
         (* Main binary *)
         basename
         "run"
diff --git a/src/dune b/src/dune
index bddbd9510095a3188978fcb8f5994affa613f516..39d94634b688173801488ff3ae6630558241a411 100644
--- a/src/dune
+++ b/src/dune
@@ -6,12 +6,11 @@
 (include_subdirs unqualified)
 
 (library
- (name lustrec_interface)
+ (name lustrec_core)
  (package lustrec)
  (modules_without_implementation scheduling_type machine_code_types)
  (modules
   lustre_types
-  lustre_utils
   utils
   location
   dimension
@@ -19,37 +18,21 @@
   real
   types
   options
-  version
   clocks
   delay
-  scheduling_type
+  log
+  corelang
   machine_code_types
   spec_types
-  spec_common
-  lustre_live
-  log
+  scheduling_type
   printers
-  corelang
   basic_library
+  version
   type_predef
+  annotations
   clock_predef
-  delay_predef
   error
   global
-  annotations
-  machine_code_common
-  arrow
-  options_management
-  stateless
-  c_backend_common
-  typing
-  ocaml_utils
-  backends
-  lustrec_mpfr
-  normalization
-  arrow_taint
-  machine_types
-  splitting
   compiler_common
   parse
   parser_lustre
@@ -58,9 +41,34 @@
   lexer_lustre
   lexerLustreSpec
   automata
-  clock_calculus)
+  stateless
+  typing
+  clock_calculus
+  backends
+  normalization
+  machine_types
+  splitting)
+ (wrapped false)
+ (libraries ocamlgraph menhirLib zarith unix))
+
+(library
+ (name lustrec_interface)
+ (package lustrec)
+ (modules
+  lustre_utils
+  spec_common
+  lustre_live
+  delay_predef
+  machine_code_common
+  arrow
+  sites_paths
+  options_management
+  c_backend_common
+  ocaml_utils
+  lustrec_mpfr
+  arrow_taint)
  (wrapped false)
- (libraries sites ocamlgraph zarith unix str menhirLib))
+ (libraries lustrec_core sites str))
 
 (library
  (name plugin_register)
@@ -71,7 +79,6 @@
 
 (generate_sites_module
  (module sites)
- ; (sites lustrec)
  (plugins
   (lustrec plugins)
   (lustrec verifiers)))
@@ -126,7 +133,7 @@
   c_backend_main
   plugins)
  (wrapped false)
- (libraries sites lustrec_interface plugin_register))
+ (libraries lustrec_interface plugin_register))
 
 (executable
  (name main_lustre_compiler)
@@ -139,13 +146,12 @@
  (name main_lustre_testgen)
  (public_name lustret)
  (modules main_lustre_testgen mutation pathConditions)
- (libraries lustrec_lib))
+ (libraries lustrec_core lustrec_lib))
 
 (library
  (name verifier_register)
  (package lustrec)
  (wrapped false)
- ; (modules_without_implementation verifierType)
  (modules verifierList verifierType)
  (libraries lustrec_interface))
 
diff --git a/src/main_lustre_testgen.ml b/src/main_lustre_testgen.ml
index 8f15747c693158f073e267a1fa98202b35a11e73..8871b296c8913dd289ab42ada5a78e7e01dcd704 100644
--- a/src/main_lustre_testgen.ml
+++ b/src/main_lustre_testgen.ml
@@ -158,11 +158,11 @@ let testgen_source dirname basename extension =
   Format.fprintf
     cmake_fmt
     "include(\"%s/helpful_functions.cmake\")@."
-    Version.testgen_path;
+    Sites_paths.testgen_path;
   Format.fprintf
     cmake_fmt
     "include(\"%s/FindLustre.cmake\")@."
-    Version.testgen_path;
+    Sites_paths.testgen_path;
   Format.fprintf cmake_fmt "LUSTREFILES(LFILES ${CMAKE_CURRENT_SOURCE_DIR} )@.";
   Format.fprintf cmake_fmt "@[<v 2>FOREACH(lus_file ${LFILES})@ ";
   Format.fprintf cmake_fmt "get_lustre_name_ext(${lus_file} L E)@ ";
diff --git a/src/options_management.ml b/src/options_management.ml
index c7f00109c98faa6b91e96e4b687eeb9e2f414ab4..80f2f691d47596e089fdcf9854708b4997483c4f 100644
--- a/src/options_management.ml
+++ b/src/options_management.ml
@@ -20,7 +20,7 @@ let print_version () =
      User provided include directory: @[<h>%a@]@]@."
     Version.number
     Version.codename
-    Version.include_path
+    Sites_paths.include_path
     (pp_print_list ~pp_sep:pp_print_space pp_print_string)
     !include_dirs
 
@@ -38,7 +38,7 @@ let add_include_dir dir =
     perform a fold_right to respect the order *)
 let search_lib_path (local, full_file_name) =
   let paths =
-    if local then !include_dirs else Version.include_path :: !include_dirs
+    if local then !include_dirs else Sites_paths.include_path :: !include_dirs
   in
   let name =
     List.fold_right
diff --git a/src/sites_paths.ml b/src/sites_paths.ml
new file mode 100644
index 0000000000000000000000000000000000000000..ba37a8483373ecdfdd7748836605a2a400494398
--- /dev/null
+++ b/src/sites_paths.ml
@@ -0,0 +1,2 @@
+let include_path = Sites.Sites.include_ |> List.hd
+let testgen_path = Sites.Sites.testgen |> List.hd
diff --git a/src/sites_paths.mli b/src/sites_paths.mli
new file mode 100644
index 0000000000000000000000000000000000000000..e66b83918fdc814bcc59e1c60ca6d9f3818a3872
--- /dev/null
+++ b/src/sites_paths.mli
@@ -0,0 +1,2 @@
+val include_path : string
+val testgen_path : string
diff --git a/src/version.ml b/src/version.ml
index de05425ea4e648489077d422d0c971a58b7122a8..9012783777c879fde447d519f81bc900686c7844 100644
--- a/src/version.ml
+++ b/src/version.ml
@@ -1,4 +1,2 @@
 let number = "@PACKAGE_VERSION@-@GITBRANCH@"
 let codename = "@VERSION_CODENAME@"
-let include_path = Sites.Sites.include_ |> List.hd
-let testgen_path = Sites.Sites.testgen |> List.hd
diff --git a/src/version.mli b/src/version.mli
index 58fc63e453a2c84f2ed6946ab2c959eae953b185..e1f7bfcf8da9b72039048e6b5a8c4c9c59733c57 100644
--- a/src/version.mli
+++ b/src/version.mli
@@ -1,4 +1,2 @@
 val number : string
 val codename : string
-val include_path : string
-val testgen_path : string