diff --git a/src/reason-parser/dune b/src/reason-parser/dune
index 00ea2b3d7..b1a40fb17 100644
--- a/src/reason-parser/dune
+++ b/src/reason-parser/dune
@@ -1,8 +1,6 @@
 (ocamllex
  (modules reason_declarative_lexer))
 
-; Use select.exe from janestreet/ppx_ast to choose ocaml_util.ml based on ocaml version
-
 (rule
  (targets ocaml_util.ml)
  (deps ocaml_util.cppo.ml)
diff --git a/src/refmt/dune b/src/refmt/dune
index c611087ac..65df6ebf9 100644
--- a/src/refmt/dune
+++ b/src/refmt/dune
@@ -5,13 +5,11 @@
  (libraries reason reason.cmdliner dune-build-info))
 
 (rule
- (targets git_commit.ml)
- (action
-  (with-stdout-to
-   %{targets}
-   (progn
-    (bash "echo let version = \\\"$(git rev-parse --verify HEAD)\\\"")
-    (bash "echo let short_version = \\\"$(git rev-parse --short HEAD)\\\"")))))
+ (with-stdout-to
+  git_commit.ml
+  (progn
+   (bash "echo let version = \\\"$(git rev-parse --verify HEAD)\\\"")
+   (bash "echo let short_version = \\\"$(git rev-parse --short HEAD)\\\""))))
 
 (rule
  (with-stdout-to