From dd8dee1c3bd1f5fa26856bf835493815164b8c8d Mon Sep 17 00:00:00 2001
From: David Mohundro <david@mohundro.com>
Date: Mon, 5 Feb 2024 09:12:53 -0600
Subject: [PATCH] Fix UseSystemTextJsonForSerialization customization

Closes #717
---
 src/Wolverine/WolverineOptions.Serialization.cs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Wolverine/WolverineOptions.Serialization.cs b/src/Wolverine/WolverineOptions.Serialization.cs
index d4d065b0c..23c6235fe 100644
--- a/src/Wolverine/WolverineOptions.Serialization.cs
+++ b/src/Wolverine/WolverineOptions.Serialization.cs
@@ -87,7 +87,7 @@ public void UseSystemTextJsonForSerialization(Action<JsonSerializerOptions>? con
         configuration?.Invoke(options);
 
         var serializer = new SystemTextJsonSerializer(options);
-        _defaultSerializer ??= serializer;
+        _defaultSerializer = serializer;
 
         _serializers[serializer.ContentType] = serializer;
     }
@@ -120,4 +120,4 @@ public void AddSerializer(IMessageSerializer serializer)
     {
         _serializers[serializer.ContentType] = serializer;
     }
-}
\ No newline at end of file
+}