Fixed one variable name change forgotten by previous commit.
Fixed one variable name change forgotten by previous commit.

tiborsimko/invenio-accounts,inveniosoftware/invenio-accounts,inspirehep/invenio-accounts,tiborsimko/invenio-accounts,tiborsimko/invenio-accounts,inveniosoftware/invenio-accounts,inspirehep/invenio-accounts,inveniosoftware/invenio-accounts,inspirehep/invenio-accounts