One of North Korea’s most active propaganda websites has begun censoring “Kim Ju Ae,” the suspected name of the leader’s daughter who has accompanied Kim Jong Un at several high-profile events since last year, according to NK News analysis.

DPRK Today now blocks searches of the name Kim Ju Ae in Korean (김주애) and recently deleted all posts that referenced someone with the same name, pointing to sensitivity around mentioning the girl who some analysts believe to be Kim Jong Un’s successor.