CSS of accordion interferes with fontawesome

[Skyr]

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Current behavior

I put a checkbox in the accordion header:

<p-accordion>
  <p-accordionTab *ngFor="let issue of issues">
    <p-header>
      <p-checkbox name="issueGroup" value="{{issue.id}}" label="{{issue.title}}" [(ngModel)]="selectedIssues"></p-checkbox>
    </p-header>
  </p-accordionTab>
</p-accordion>

If the box is checked, the check mark is left of the checkbox (barely visible)

Expected behavior
The checkbox should look as usual :-)

Minimal reproduction of the problem with instructions

• Angular version: 2.3.x (should not matter)

• PrimeNG version: 2.0.6