Vertically center buttons in navbar

So i have to icon buttons in my navbar and they keep hugging the bottom on iPhone 6s. I think this should be a pretty easy fix, but any help is appreciated.

Here’s my code and a picture.

<ion-header>

  <ion-navbar >
    <ion-buttons left>
        <button ion-button icon-only>
          <ion-icon name="chatboxes"></ion-icon>
        </button>
    </ion-buttons>
    <ion-title>Title</ion-title>
    <ion-buttons right>
      <button ion-button icon-only><ion-icon name="notifications"></ion-icon></button>
    </ion-buttons>
  </ion-navbar>
</ion-header>