From 9be9f85920fe12ae31370a08fbb703229a78c0e1 Mon Sep 17 00:00:00 2001
From: "d.piccinini" <davide.piccinini@engageitservices.it>
Date: Wed, 21 Jun 2023 18:02:52 +0200
Subject: [PATCH] Fix missing nullable parameter

---
 src/Spectre.Console/Prompts/List/ListPromptConstants.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Spectre.Console/Prompts/List/ListPromptConstants.cs b/src/Spectre.Console/Prompts/List/ListPromptConstants.cs
index 8831c340a..ea1f32ec8 100644
--- a/src/Spectre.Console/Prompts/List/ListPromptConstants.cs
+++ b/src/Spectre.Console/Prompts/List/ListPromptConstants.cs
@@ -10,7 +10,7 @@ internal sealed class ListPromptConstants
     public const string MoreChoicesMarkup = "[grey](Move up and down to reveal more choices)[/]";
     public const string SearchPlaceholderMarkup = "[grey](Type to search)[/]";
 
-    public static string GetSelectedCheckbox(bool isGroup, SelectionMode mode, Style style = null)
+    public static string GetSelectedCheckbox(bool isGroup, SelectionMode mode, Style? style = null)
     {
         if (style != null)
         {