diff --git a/lib/response.ml b/lib/response.ml
index 6221034..56402d4 100644
--- a/lib/response.ml
+++ b/lib/response.ml
@@ -10,7 +10,14 @@ let parse_header reader =
   | _ -> failwith "Invalid number of fields"
 ;;
 
-let decode_name_simple reader =
+let rec parse_question reader =
+  let reader', name_b = decode_name_simple reader in
+  let name = String.to_bytes name_b in
+  match List.init 2 (fun offset -> unpack_short_be reader' (offset * 2)) with
+  | [ type_; class_ ] -> { name; type_; class_ }
+  | _ -> failwith "Invalid number of fields"
+
+and decode_name_simple reader =
   let rec read_parts parts pos =
     let length = int_of_char (Bytes.get reader pos) in
     if length = 0
@@ -23,11 +30,3 @@ let decode_name_simple reader =
   let offset, parts = read_parts [] 0 in
   bytes_forward reader offset, String.concat "." parts
 ;;
-
-let parse_question reader =
-  let reader', name_b = decode_name_simple reader in
-  let name = String.to_bytes name_b in
-  match List.init 2 (fun offset -> unpack_short_be reader' (offset * 2)) with
-  | [ type_; class_ ] -> { name; type_; class_ }
-  | _ -> failwith "Invalid number of fields"
-;;