diff --git a/lib/igniter/code/common.ex b/lib/igniter/code/common.ex
index 03b8f72..e68602b 100644
--- a/lib/igniter/code/common.ex
+++ b/lib/igniter/code/common.ex
@@ -272,7 +272,7 @@ defmodule Igniter.Code.Common do
 
   def replace_code(zipper, code) do
     # code = use_aliases(code, zipper)
-    Zipper.replace(zipper, code)
+    Zipper.replace(zipper, code |> Macro.to_string() |> Sourceror.parse_string!())
   end
 
   def extendable_block?({:__block__, meta, contents}) when is_list(contents) do
diff --git a/test/igniter/project/config_test.exs b/test/igniter/project/config_test.exs
index 526cb5e..2fad730 100644
--- a/test/igniter/project/config_test.exs
+++ b/test/igniter/project/config_test.exs
@@ -234,6 +234,28 @@ defmodule Igniter.Project.ConfigTest do
              """
     end
 
+    @tag :regression
+    test "arbitrary data structures can be used as values" do
+      %{rewrite: rewrite} =
+        Igniter.new()
+        |> Igniter.create_new_elixir_file("config/fake.exs", """
+          import Config
+
+          config :level1, :level2, level3: [{"hello", "world"}]
+        """)
+        |> Igniter.Project.Config.configure("fake.exs", :level1, [:level2, :level3], [
+          {"hello1", "world1"}
+        ])
+
+      config_file = Rewrite.source!(rewrite, "config/fake.exs")
+
+      assert Source.get(config_file, :content) == """
+             import Config
+
+             config :level1, :level2, level3: [{"hello1", "world1"}]
+             """
+    end
+
     test "present values can be updated by updating map keys" do
       %{rewrite: rewrite} =
         Igniter.new()