What's the MSIL to call a base class's event handler?

public event EventHandler EventConsumed;

public virtual void OnEventConsumed(object sender, EventArgs e)
{
    if (EventConsumed != null)
        EventConsumed(this, e);
}

public override void OnEventConsumed(object sender, EventArgs e)
{
    base.OnEventConsumed(sender, e);
}

...

MethodInfo baseMethod = typeof(EventConsumer).GetMethod("OnEventConsumed");
MethodBuilder methodBuilder = typeBuilder.DefineMethod("OnEventConsumed",
                                                       baseMethod.Attributes,
                                                       baseMethod.CallingConvention,
                                                       typeof(void),
                                                       new Type[] {typeof(object),
                                                                   typeof(EventArgs)});

ILGenerator ilGenerator = methodBuilder.GetILGenerator();

// load the first two args onto the stack
ilGenerator.Emit(OpCodes.Ldarg_1);
ilGenerator.Emit(OpCodes.Ldarg_2);

// call the base method
ilGenerator.EmitCall(OpCodes.Callvirt, baseMethod, new Type[0] );

// return
ilGenerator.Emit(OpCodes.Ret);

...

Common Language Runtime detected an invalid program.

.method public hidebysig virtual instance void OnEventConsumed(object sender, class [mscorlib]System.EventArgs e) cil managed
    {
        .maxstack 8
        L_0000: nop
        L_0001: ldarg.0
        L_0002: ldarg.1
        L_0003: ldarg.2
        L_0004: call instance void SubclassSpike.BaseClass::OnEventConsumed(object, class [mscorlib]System.EventArgs)
        L_0009: nop
        L_000a: ret
    }

// load 'this' and the first two args onto the stack
ilGenerator.Emit(OpCodes.Ldarg_0);
ilGenerator.Emit(OpCodes.Ldarg_1);
ilGenerator.Emit(OpCodes.Ldarg_2);

// call the base method
ilGenerator.EmitCall(OpCodes.Call, baseMethod, new Type[0] );

// return
ilGenerator.Emit(OpCodes.Ret);

public virtual void OnEventConsumed(object sender, EventArgs e)
{
    if (EventConsumed != null)
        EventConsumed(this, e);
}

public virtual void OnEventConsumed(EventArgs e)
{
    EventHandler handler = this.EventConsumed;
    if ( null != handler ) handler( this, e );
}