diff --git a/test/dune b/test/dune
index 6830b44..35ac7c3 100644
--- a/test/dune
+++ b/test/dune
@@ -12,6 +12,8 @@
   (glob_files %{workspace_root}/vendor/raylib/*)
   ; The dev agent package: its Flan declarations and the C that implements them.
   (glob_files %{workspace_root}/vendor/agent/*)
+  ; The EDN tokenizer, which programs/edn.flan imports.
+  (glob_files %{workspace_root}/vendor/edn/*)
   (glob_files programs/*.flan)
   ; The reload primitive's host: a C main that dlopens what Build.shared made.
   (file reload_host.c)