diff --git a/tests/NSubstitute.Acceptance.Specs/FieldReports/Issue500_SpecialMethodsWithoutAttribute.cs b/tests/NSubstitute.Acceptance.Specs/FieldReports/Issue500_SpecialMethodsWithoutAttribute.cs
index 089e5f71..42ae5008 100644
--- a/tests/NSubstitute.Acceptance.Specs/FieldReports/Issue500_SpecialMethodsWithoutAttribute.cs
+++ b/tests/NSubstitute.Acceptance.Specs/FieldReports/Issue500_SpecialMethodsWithoutAttribute.cs
@@ -1,6 +1,6 @@
+using NUnit.Framework;
 using System.Reflection;
 using System.Reflection.Emit;
-using NUnit.Framework;
 
 namespace NSubstitute.Acceptance.Specs.FieldReports;
 
@@ -18,7 +18,7 @@ static Issue500_SpecialMethodsWithoutAttribute()
     [Test]
     public void ShouldCorrectlyConfigureProperty()
     {
-        var substitute = Substitute.For([TypeWithMissingSpecialNameMethodAttributes], []);
+        var substitute = Substitute.For(new[] { TypeWithMissingSpecialNameMethodAttributes }, new object[0]);
         var fixture = new GeneratedTypeFixture(substitute);
 
         fixture.MyProperty = "42";
@@ -30,7 +30,7 @@ public void ShouldCorrectlyConfigureProperty()
     [Test]
     public void ShouldCorrectlyConfigureEvent()
     {
-        object substitute = Substitute.For([TypeWithMissingSpecialNameMethodAttributes], []);
+        object substitute = Substitute.For(new[] { TypeWithMissingSpecialNameMethodAttributes }, new object[0]);
         var fixture = new GeneratedTypeFixture(substitute);
 
         bool wasCalled = false;
@@ -52,19 +52,20 @@ private static Type GenerateTypeWithMissingSpecialNameAttributes()
         var typeBuilder = module.DefineType("TypeWithMissingSpecialAttributes",
             TypeAttributes.Public | TypeAttributes.Abstract);
 
+        typeBuilder.DefineDefaultConstructor(MethodAttributes.Public);
         var evBuilder = typeBuilder.DefineEvent(EventName, EventAttributes.None, typeof(EventHandler));
         var evAdder = typeBuilder.DefineMethod(
             $"add_{EventName}",
             MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.Abstract |
             MethodAttributes.HideBySig | MethodAttributes.NewSlot /* | MethodAttributes.SpecialName */,
             typeof(void),
-            [typeof(EventHandler)]);
+            new[] { typeof(EventHandler) });
         var evRemover = typeBuilder.DefineMethod(
             $"remove_{EventName}",
             MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.Abstract |
             MethodAttributes.HideBySig | MethodAttributes.NewSlot /* | MethodAttributes.SpecialName */,
             typeof(void),
-            [typeof(EventHandler)]);
+            new[] { typeof(EventHandler) });
         evBuilder.SetAddOnMethod(evAdder);
         evBuilder.SetRemoveOnMethod(evRemover);
 
@@ -81,25 +82,32 @@ private static Type GenerateTypeWithMissingSpecialNameAttributes()
             MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.Abstract |
             MethodAttributes.HideBySig | MethodAttributes.NewSlot /* | MethodAttributes.SpecialName */,
             typeof(void),
-            [typeof(object)]);
+            new[] { typeof(object) });
         propBuilder.SetGetMethod(propGetter);
         propBuilder.SetSetMethod(propSetter);
 
         return typeBuilder.CreateTypeInfo().AsType();
     }
 
-    private class GeneratedTypeFixture(object substitute)
+    private class GeneratedTypeFixture
     {
+        private readonly object _substitute;
+
+        public GeneratedTypeFixture(object substitute)
+        {
+            _substitute = substitute;
+        }
+
         public object MyProperty
         {
-            get => substitute.GetType().GetProperty(PropertyName).GetValue(substitute);
-            set => substitute.GetType().GetProperty(PropertyName).SetValue(substitute, value);
+            get => _substitute.GetType().GetProperty(PropertyName).GetValue(_substitute);
+            set => _substitute.GetType().GetProperty(PropertyName).SetValue(_substitute, value);
         }
 
         public event EventHandler MyEvent
         {
-            add => substitute.GetType().GetEvent(EventName).AddEventHandler(substitute, value);
-            remove => substitute.GetType().GetEvent(EventName).RemoveEventHandler(substitute, value);
+            add => _substitute.GetType().GetEvent(EventName).AddEventHandler(_substitute, value);
+            remove => _substitute.GetType().GetEvent(EventName).RemoveEventHandler(_substitute, value);
         }
     }
 }
\ No newline at end of file