diff --git a/src/ReC.Client/ReCClient.cs b/src/ReC.Client/ReCClient.cs
index 138bb72..9f81ff7 100644
--- a/src/ReC.Client/ReCClient.cs
+++ b/src/ReC.Client/ReCClient.cs
@@ -48,15 +48,11 @@ namespace ReC.Client
         #region Static
         private static readonly IServiceCollection Services = new ServiceCollection();
 
-        private static IServiceProvider
-#if nullable
-            ?
+#if NET8_0_OR_GREATER
+        private static IServiceProvider? ServiceProvider = null;
+#else
+        private static IServiceProvider ServiceProvider = null;
 #endif
-            ServiceProvider
-#if nullable
-            = null
-#endif
-            ;
 
         public static void BuildStaticClient(string apiUri)
         {