diff --git a/apps/configurator/lib/configurator_web/controllers/map_configuration_html.ex b/apps/configurator/lib/configurator_web/controllers/map_configuration_html.ex
index 46f5d388f..99fab600e 100644
--- a/apps/configurator/lib/configurator_web/controllers/map_configuration_html.ex
+++ b/apps/configurator/lib/configurator_web/controllers/map_configuration_html.ex
@@ -15,7 +15,8 @@ defmodule ConfiguratorWeb.MapConfigurationHTML do
     embeds
     |> Enum.map(&embed_to_string/1)
     |> Enum.reject(&(&1 == nil))
-    |> json_encode
+    |> Jason.encode!()
+    |> Jason.Formatter.pretty_print()
   end
 
   def embed_to_string(nil), do: nil
@@ -33,10 +34,4 @@ defmodule ConfiguratorWeb.MapConfigurationHTML do
   def embed_to_string(struct) when is_map(struct) do
     struct
   end
-
-  def json_encode(value) do
-    value
-    |> Jason.encode!()
-    |> Jason.Formatter.pretty_print()
-  end
 end
diff --git a/apps/configurator/lib/configurator_web/controllers/map_configuration_html/index.html.heex b/apps/configurator/lib/configurator_web/controllers/map_configuration_html/index.html.heex
index d20524696..9b1f79f82 100644
--- a/apps/configurator/lib/configurator_web/controllers/map_configuration_html/index.html.heex
+++ b/apps/configurator/lib/configurator_web/controllers/map_configuration_html/index.html.heex
@@ -66,7 +66,9 @@
     <% else %>
       <.button type="button" phx-click={show_modal("square-wall-#{map_configuration.id}")}>Show</.button>
       <.modal id={"square-wall-#{map_configuration.id}"}>
-        <p class="whitespace-pre"><%= json_encode(map_configuration.square_wall) %></p>
+        <p class="whitespace-pre">
+          <%= embed_to_string(map_configuration.square_wall) |> Jason.encode!() |> Jason.Formatter.pretty_print() %>
+        </p>
       </.modal>
     <% end %>
   </:col>
diff --git a/apps/configurator/lib/configurator_web/controllers/map_configuration_html/map_configuration_form.html.heex b/apps/configurator/lib/configurator_web/controllers/map_configuration_html/map_configuration_form.html.heex
index 00880c160..5fa9b6a8c 100644
--- a/apps/configurator/lib/configurator_web/controllers/map_configuration_html/map_configuration_form.html.heex
+++ b/apps/configurator/lib/configurator_web/controllers/map_configuration_html/map_configuration_form.html.heex
@@ -6,9 +6,14 @@
   <.input
     field={f[:version_id]}
     type="select"
-    options={Enum.map(GameBackend.Configuration.list_versions(), fn version -> {version.name, version.id} end)}
+    options={
+      Enum.map(GameBackend.Configuration.list_versions(), fn version ->
+        {version.name, version.id}
+      end)
+    }
     label="Version"
-  /> <.input field={f[:name]} type="text" label="Name" />
+  />
+  <.input field={f[:name]} type="text" label="Name" />
   <.input field={f[:radius]} type="number" label="Radius" step="any" />
   <.input
     field={f[:initial_positions]}
@@ -16,7 +21,12 @@
     label="Initial positions"
     value={embed_to_string(f[:initial_positions].value)}
   />
-  <.input field={f[:square_wall]} type="textarea" label="Square Wall" value={json_encode(f[:square_wall].value)} />
+  <.input
+    field={f[:square_wall]}
+    type="textarea"
+    label="Square Wall"
+    value={embed_to_string(f[:square_wall].value) |> Jason.encode!() |> Jason.Formatter.pretty_print()}
+  />
   <.input field={f[:obstacles]} type="textarea" label="Obstacles" value={embed_to_string(f[:obstacles].value)} />
   <.input field={f[:bushes]} type="textarea" label="Bushes" value={embed_to_string(f[:bushes].value)} />
   <.input field={f[:pools]} type="textarea" label="Pools" value={embed_to_string(f[:pools].value)} />
diff --git a/apps/configurator/lib/configurator_web/controllers/map_configuration_html/show.html.heex b/apps/configurator/lib/configurator_web/controllers/map_configuration_html/show.html.heex
index 726d2837c..1a6121a38 100644
--- a/apps/configurator/lib/configurator_web/controllers/map_configuration_html/show.html.heex
+++ b/apps/configurator/lib/configurator_web/controllers/map_configuration_html/show.html.heex
@@ -105,7 +105,9 @@
       <% else %>
         <.button type="button" phx-click={show_modal("square-wall-#{@map_configuration.id}")}>Show</.button>
         <.modal id={"square-wall-#{@map_configuration.id}"}>
-          <p class="whitespace-pre"><%= json_encode(@map_configuration.square_wall) %></p>
+          <p class="whitespace-pre">
+            <%= embed_to_string(@map_configuration.square_wall) |> Jason.encode!() |> Jason.Formatter.pretty_print() %>
+          </p>
         </.modal>
       <% end %>
     </dd>
diff --git a/apps/configurator/test/configurator_web/controllers/map_configuration_controller_test.exs b/apps/configurator/test/configurator_web/controllers/map_configuration_controller_test.exs
index d425f3b7f..64b5a3dd6 100644
--- a/apps/configurator/test/configurator_web/controllers/map_configuration_controller_test.exs
+++ b/apps/configurator/test/configurator_web/controllers/map_configuration_controller_test.exs
@@ -13,7 +13,8 @@ defmodule ConfiguratorWeb.MapConfigurationControllerTest do
     bushes: "",
     pools: "",
     crates: "",
-    active: true
+    active: true,
+    square_wall: ""
   }
   @update_attrs %{
     name: "another_map",
@@ -23,7 +24,8 @@ defmodule ConfiguratorWeb.MapConfigurationControllerTest do
     bushes: "",
     pools: "",
     crates: "",
-    active: false
+    active: false,
+    square_wall: nil
   }
   @invalid_attrs %{
     name: nil,
@@ -33,7 +35,8 @@ defmodule ConfiguratorWeb.MapConfigurationControllerTest do
     bushes: nil,
     pools: nil,
     crates: nil,
-    active: nil
+    active: nil,
+    square_wall: ""
   }
 
   describe "index" do
diff --git a/apps/game_backend/lib/game_backend/curse_of_mirra/map_configuration.ex b/apps/game_backend/lib/game_backend/curse_of_mirra/map_configuration.ex
index eaa8240d7..b8546528a 100644
--- a/apps/game_backend/lib/game_backend/curse_of_mirra/map_configuration.ex
+++ b/apps/game_backend/lib/game_backend/curse_of_mirra/map_configuration.ex
@@ -58,7 +58,6 @@ defmodule GameBackend.CurseOfMirra.MapConfiguration do
     def changeset(square_wall, attrs) do
       square_wall
       |> cast(attrs, [:right, :left, :top, :bottom])
-      |> validate_required([:right, :left, :top, :bottom])
     end
   end