“It’s like she’s in blackface,” the adopted brother of embattled Spokane, Wash. NAACP leader Rachel Dolezal complained Saturday.

“It’s kind of a slap in the face to African Americans because she doesn’t know what it’s like to be black,” Ezra Dolezal — whose father is half black — told CNN.

Dolezal, 37, was outed by her Caucasian parents last week as “pretending” to be black.

“She’s only been African American when it benefited her. She hasn’t been through all the struggles. She’s only been African American the last few years,” he said.

The brother, who shares the parents’ Northwest Montana home, said he recalls visiting her in Spokane, and her telling him she was starting life over as a black woman.

“She told me not to blow her cover about the fact that she had this secret life or alternate identity,” the brother said.