diff --git a/src/binary_formats.ml b/src/binary_formats.ml
index 7547bb34..772dd577 100644
--- a/src/binary_formats.ml
+++ b/src/binary_formats.ml
@@ -486,6 +486,8 @@ module SigningKeyAnnouncementPS = struct
     |> sealr
 end
 
+(* --- BIN IMPL END --- *)
+
 module SingleWithdrawRequestPS = struct
   (* purpose.purpose = TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW *)
   type t = {