diff --git a/test/plug/conn/query_test.exs b/test/plug/conn/query_test.exs
index 35d903ee..a264c963 100644
--- a/test/plug/conn/query_test.exs
+++ b/test/plug/conn/query_test.exs
@@ -181,7 +181,9 @@ defmodule Plug.Conn.QueryTest do
     end
 
     defp decode_pair(pairs) do
-      Enum.reduce(Enum.reverse(pairs), %{}, &Plug.Conn.Query.decode_pair(&1, &2))
+      pairs
+      |> Enum.reduce(Plug.Conn.Query.decode_init(), &Plug.Conn.Query.decode_each/2)
+      |> Plug.Conn.Query.decode_done()
     end
   end
 end