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-rw-r--r--src/pretty_print_sail.ml1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/pretty_print_sail.ml b/src/pretty_print_sail.ml
index 9c33c841..6826087a 100644
--- a/src/pretty_print_sail.ml
+++ b/src/pretty_print_sail.ml
@@ -488,6 +488,7 @@ let doc_rec (Rec_aux(r,_)) = match r with
let doc_tannot_opt (Typ_annot_opt_aux(t,_)) = match t with
| Typ_annot_opt_some(tq,typ) -> doc_typquant tq (doc_typ typ)
+ | Typ_annot_opt_none -> empty
let doc_effects_opt (Effect_opt_aux(e,_)) = match e with
| Effect_opt_pure -> string "pure"