addUniqueConstraint not supported on sqlite

So I read the documentation and it says addUniqueConstraint is supported for sqlite, however when I try to apply this change set I get and Error




 1 changes have validation failures

          addUniqueConstraint is not supported on sqlite,

Any idea whats going on? I’m using liquibase 2.0.1 and sqlite3 (sqlite-jdbc-3.6.0.jar)