The State Department said a clerical error on its end is to blame for the confusion that arose Tuesday over when officials first withheld an email that revealed Hillary Clinton was using a private email address.

Tuesday morning, the watchdog group Judicial Watch said it got a letter from State that said it withheld that email in November, 2014. That prompted Judicial Watch to claim that State appears to have withheld the email to keep it from seeing Clinton’s private email address.