diff --git a/sapl/protocoloadm/forms.py b/sapl/protocoloadm/forms.py
index 1003786d1..300078e20 100644
--- a/sapl/protocoloadm/forms.py
+++ b/sapl/protocoloadm/forms.py
@@ -12,7 +12,7 @@ from django.utils.translation import ugettext_lazy as _
 
 from sapl.base.models import Autor
 from sapl.crispy_layout_mixin import form_actions, to_row
-from sapl.materia.models import UnidadeTramitacao
+from sapl.materia.models import UnidadeTramitacao, TipoMateriaLegislativa
 from sapl.utils import (RANGE_ANOS, AnoNumeroOrderingFilter,
                         RangeWidgetOverride, autor_label, autor_modal)