diff --git a/Cpp2IL.Core/Model/Contexts/GenericParameterTypeAnalysisContext.cs b/Cpp2IL.Core/Model/Contexts/GenericParameterTypeAnalysisContext.cs
index a998ed96..ebb86125 100644
--- a/Cpp2IL.Core/Model/Contexts/GenericParameterTypeAnalysisContext.cs
+++ b/Cpp2IL.Core/Model/Contexts/GenericParameterTypeAnalysisContext.cs
@@ -6,7 +6,9 @@ namespace Cpp2IL.Core.Model.Contexts;
 
 public class GenericParameterTypeAnalysisContext : ReferencedTypeAnalysisContext
 {
-    public override string DefaultName { get; }
+    public sealed override string DefaultName { get; }
+
+    public sealed override string DefaultNs => "";
 
     public int Index { get; }
 
diff --git a/Cpp2IL.Core/Model/CustomAttributes/CustomAttributeNullParameter.cs b/Cpp2IL.Core/Model/CustomAttributes/CustomAttributeNullParameter.cs
new file mode 100644
index 00000000..757f9f76
--- /dev/null
+++ b/Cpp2IL.Core/Model/CustomAttributes/CustomAttributeNullParameter.cs
@@ -0,0 +1,13 @@
+using System.IO;
+using Cpp2IL.Core.Model.Contexts;
+
+namespace Cpp2IL.Core.Model.CustomAttributes;
+
+public sealed class CustomAttributeNullParameter : BaseCustomAttributeParameter
+{
+    public CustomAttributeNullParameter(AnalyzedCustomAttribute owner, CustomAttributeParameterKind kind, int index) : base(owner, kind, index)
+    {
+    }
+
+    public override void ReadFromV29Blob(BinaryReader reader, ApplicationAnalysisContext context) => throw new System.NotSupportedException();
+}
diff --git a/Cpp2IL.Core/ProcessingLayers/CallAnalysisProcessingLayer.cs b/Cpp2IL.Core/ProcessingLayers/CallAnalysisProcessingLayer.cs
index 925585a6..90fb04a7 100644
--- a/Cpp2IL.Core/ProcessingLayers/CallAnalysisProcessingLayer.cs
+++ b/Cpp2IL.Core/ProcessingLayers/CallAnalysisProcessingLayer.cs
@@ -175,17 +175,17 @@ private static void AddAttribute((InjectedMethodAnalysisContext, InjectedFieldAn
         }
         else
         {
-            typeField = (callsAttributeInfo.Item2[1], typeFullName);
+            typeField = (callsAttributeInfo.Item2[0], typeFullName);
         }
 
-        var memberField = (callsAttributeInfo.Item2[2], targetMethod.Name);
+        var memberField = (callsAttributeInfo.Item2[1], targetMethod.Name);
 
         (FieldAnalysisContext, object)? typeParametersField;
         if (targetMethod is ConcreteGenericMethodAnalysisContext concreteMethod)
         {
             if (concreteMethod.MethodRef.MethodGenericParams.Length > 0)
             {
-                var parameters = new TypeAnalysisContext[concreteMethod.MethodRef.MethodGenericParams.Length];
+                var parameters = new object?[concreteMethod.MethodRef.MethodGenericParams.Length];
 
                 for (var i = 0; i < parameters.Length; i++)
                 {
@@ -194,9 +194,13 @@ private static void AddAttribute((InjectedMethodAnalysisContext, InjectedFieldAn
                     {
                         parameters[i] = parameterType;
                     }
+                    else
+                    {
+                        parameters[i] = parameterType?.FullName;
+                    }
                 }
 
-                typeParametersField = (callsAttributeInfo.Item2[3], parameters);
+                typeParametersField = (callsAttributeInfo.Item2[2], parameters);
             }
             else
             {
@@ -211,7 +215,7 @@ private static void AddAttribute((InjectedMethodAnalysisContext, InjectedFieldAn
         (FieldAnalysisContext, object)? parametersField;
         if (targetMethod.ParameterCount > 0)
         {
-            var parameters = new TypeAnalysisContext[targetMethod.ParameterCount];
+            var parameters = new object?[targetMethod.ParameterCount];
 
             for (var i = 0; i < parameters.Length; i++)
             {
@@ -220,9 +224,13 @@ private static void AddAttribute((InjectedMethodAnalysisContext, InjectedFieldAn
                 {
                     parameters[i] = parameterType;
                 }
+                else
+                {
+                    parameters[i] = parameterType?.FullName;
+                }
             }
 
-            parametersField = (callsAttributeInfo.Item2[4], parameters);
+            parametersField = (callsAttributeInfo.Item2[3], parameters);
         }
         else
         {
@@ -245,11 +253,10 @@ private static void AddAttribute((InjectedMethodAnalysisContext, InjectedFieldAn
             methodName,
             AttributeTargets.Method,
             true,
-            (appContext.SystemTypes.SystemTypeType, "Type"),
-            (appContext.SystemTypes.SystemStringType, "TypeFullName"),
+            (appContext.SystemTypes.SystemObjectType, "Type"),
             (appContext.SystemTypes.SystemStringType, "Member"),
-            (appContext.SystemTypes.SystemTypeType.MakeSzArrayType(), "MemberTypeParameters"),
-            (appContext.SystemTypes.SystemTypeType.MakeSzArrayType(), "MemberParameters"));
+            (appContext.SystemTypes.SystemObjectType.MakeSzArrayType(), "MemberTypeParameters"),
+            (appContext.SystemTypes.SystemObjectType.MakeSzArrayType(), "MemberParameters"));
     }
 
     private static bool TryGetCommonMethodFromList(List<MethodAnalysisContext> methods, [NotNullWhen(true)] out MethodAnalysisContext? commonMethod)
diff --git a/Cpp2IL.Core/Utils/AsmResolver/AsmResolverAssemblyPopulator.cs b/Cpp2IL.Core/Utils/AsmResolver/AsmResolverAssemblyPopulator.cs
index d101fb49..d76b7da5 100644
--- a/Cpp2IL.Core/Utils/AsmResolver/AsmResolverAssemblyPopulator.cs
+++ b/Cpp2IL.Core/Utils/AsmResolver/AsmResolverAssemblyPopulator.cs
@@ -112,6 +112,7 @@ private static CustomAttributeArgument BuildArrayArgument(AssemblyDefinition par
                     CustomAttributePrimitiveParameter primitiveParameter => primitiveParameter.PrimitiveValue,
                     CustomAttributeEnumParameter enumParameter => enumParameter.UnderlyingPrimitiveParameter.PrimitiveValue,
                     BaseCustomAttributeTypeParameter type => (object?)type.TypeContext?.ToTypeSignature(parentAssembly.ManifestModule!),
+                    CustomAttributeNullParameter => null,
                     _ => throw new("Not supported array element type: " + e.GetType().FullName)
                 };
 
diff --git a/Cpp2IL.Core/Utils/AttributeInjectionUtils.cs b/Cpp2IL.Core/Utils/AttributeInjectionUtils.cs
index f4b01c95..c6148382 100644
--- a/Cpp2IL.Core/Utils/AttributeInjectionUtils.cs
+++ b/Cpp2IL.Core/Utils/AttributeInjectionUtils.cs
@@ -172,16 +172,29 @@ private static Il2CppType GetAttributeTargetsType(AssemblyAnalysisContext mscorl
 
     private static BaseCustomAttributeParameter MakeFieldParameter(object fieldValue, AnalyzedCustomAttribute owner, int index)
     {
-        return fieldValue switch
+        return MakeCustomAttributeParameter(fieldValue, owner, index, CustomAttributeParameterKind.Field);
+    }
+
+    private static BaseCustomAttributeParameter MakeCustomAttributeParameter(object? value, AnalyzedCustomAttribute owner, int index, CustomAttributeParameterKind parameterKind)
+    {
+        return value switch
         {
-            Il2CppType type => new CustomAttributeTypeParameter(type, owner, CustomAttributeParameterKind.Field, index),
-            TypeAnalysisContext type => new InjectedCustomAttributeTypeParameter(type, owner, CustomAttributeParameterKind.Field, index),
-            TypeAnalysisContext[] types => new CustomAttributeArrayParameter(owner, CustomAttributeParameterKind.Field, index)
+            Il2CppType type => new CustomAttributeTypeParameter(type, owner, parameterKind, index),
+            TypeAnalysisContext type => new InjectedCustomAttributeTypeParameter(type, owner, parameterKind, index),
+            TypeAnalysisContext?[] types => new CustomAttributeArrayParameter(owner, parameterKind, index)
             {
                 ArrType = Il2CppTypeEnum.IL2CPP_TYPE_IL2CPP_TYPE_INDEX,
-                ArrayElements = types.Select(t => new InjectedCustomAttributeTypeParameter(t, owner, CustomAttributeParameterKind.ArrayElement, index)).Cast<BaseCustomAttributeParameter>().ToList()
+                ArrayElements = types.Select(t => (BaseCustomAttributeParameter)new InjectedCustomAttributeTypeParameter(t, owner, CustomAttributeParameterKind.ArrayElement, index)).ToList()
+            },
+            object?[] objects => new CustomAttributeArrayParameter(owner, parameterKind, index)
+            {
+                ArrType = Il2CppTypeEnum.IL2CPP_TYPE_OBJECT,
+                ArrayElements = objects.Select(obj => obj is null
+                    ? new CustomAttributeNullParameter(owner, CustomAttributeParameterKind.ArrayElement, index)
+                    : MakeCustomAttributeParameter(obj, owner, index, CustomAttributeParameterKind.ArrayElement)).ToList()
             },
-            IConvertible convertible => new CustomAttributePrimitiveParameter(convertible, owner, CustomAttributeParameterKind.Field, index),
+            IConvertible convertible => new CustomAttributePrimitiveParameter(convertible, owner, parameterKind, index),
+            null => new CustomAttributeNullParameter(owner, parameterKind, index),
             _ => throw new NotSupportedException(),
         };
     }