diff --git a/src/usexp/dune_lexer.mli b/src/usexp/dune_lexer.mli
new file mode 100644
index 00000000..5d1e70f7
--- /dev/null
+++ b/src/usexp/dune_lexer.mli
@@ -0,0 +1 @@
+val token : Lexer_shared.t
diff --git a/src/usexp/jbuild_lexer.mli b/src/usexp/jbuild_lexer.mli
new file mode 100644
index 00000000..5d1e70f7
--- /dev/null
+++ b/src/usexp/jbuild_lexer.mli
@@ -0,0 +1 @@
+val token : Lexer_shared.t