diff --git a/bootstrap/bin/hocc/stateNub.ml b/bootstrap/bin/hocc/stateNub.ml
index a0e9f3bd4..5b984f129 100644
--- a/bootstrap/bin/hocc/stateNub.ml
+++ b/bootstrap/bin/hocc/stateNub.ml
@@ -267,26 +267,26 @@ let compat_lr1 GotoNub.{goto; _} {lr1itemsetclosure={kernel; _}; _} =
 let compat_ielr1 ~resolve symbols prods GotoNub.{contribs=o_contribs; _}
   {lr1itemsetclosure={index=_XXX; _}; contribs=t_contribs; _} =
   let compat = Contribs.fold2_until ~init:true
-    ~f:(fun _ _conflict_state_index Attribs.Akey.{symbol_index; _} aval_opt0 aval_opt1 ->
-      let Attribs.Aval.{contrib=o_contrib; _} =
-        Option.value ~default:Attribs.Aval.empty aval_opt0 in
-      let Attribs.Aval.{contrib=t_contrib; _} =
-        Option.value ~default:Attribs.Aval.empty aval_opt1 in
-      (* Merge shift into an empty contrib if the other contrib contains shift. If there is a
-       * shift action in the conflict, *all* lanes implicitly contribute shift, even if they don't
-       * contribute reduces. *)
-      let o_contrib, t_contrib =
-        match Contrib.is_empty o_contrib && Contrib.mem_shift t_contrib with
-        | false -> begin
-            match Contrib.is_empty t_contrib && Contrib.mem_shift o_contrib with
-            | false -> o_contrib, t_contrib
-            | true -> o_contrib, Contrib.shift
-          end
-        | true -> Contrib.shift, t_contrib
-      in
-      let compat = Contrib.compat_ielr1 ~resolve symbols prods symbol_index o_contrib t_contrib in
-      compat, not compat
-    ) o_contribs t_contribs
+      ~f:(fun _ _conflict_state_index Attribs.Akey.{symbol_index; _} aval_opt0 aval_opt1 ->
+        let Attribs.Aval.{contrib=o_contrib; _} =
+          Option.value ~default:Attribs.Aval.empty aval_opt0 in
+        let Attribs.Aval.{contrib=t_contrib; _} =
+          Option.value ~default:Attribs.Aval.empty aval_opt1 in
+        (* Merge shift into an empty contrib if the other contrib contains shift. If there is a
+         * shift action in the conflict, *all* lanes implicitly contribute shift, even if they don't
+         * contribute reduces. *)
+        let o_contrib, t_contrib =
+          match Contrib.is_empty o_contrib && Contrib.mem_shift t_contrib with
+          | false -> begin
+              match Contrib.is_empty t_contrib && Contrib.mem_shift o_contrib with
+              | false -> o_contrib, t_contrib
+              | true -> o_contrib, Contrib.shift
+            end
+          | true -> Contrib.shift, t_contrib
+        in
+        let compat = Contrib.compat_ielr1 ~resolve symbols prods symbol_index o_contrib t_contrib in
+        compat, not compat
+      ) o_contribs t_contribs
   in
 
 (*