How to add a Blend Behavior in a Style Setter

I have crated a Blend behavior for Button. How can I set that to all of my Buttons in the app.

<Button ...>
  <i:Interaction.Behaviors>
    <local:MyBehavior />
  </i:Interaction.Behaviors>
</Button>

However, when I try:

<Style>
  <Setter Property="i:Interaction.Behaviors">
    <Setter.Value>
      <local:MyBehavior />
    </Setter.Value>
  </Setter>
</Style>

I get the error

The property "Behaviors" does not have an accessible setter.