diff --git a/comissoes/urls.py b/comissoes/urls.py
index bff625ee0..dfbde7d40 100644
--- a/comissoes/urls.py
+++ b/comissoes/urls.py
@@ -7,7 +7,9 @@ from comissoes.views import (CadastrarComissaoView, CargoCrud, ComissaoCrud,
                              PeriodoComposicaoCrud, ReunioesView,
                              TipoComissaoCrud)
 
-comissao_url_patterns = ComissaoCrud.get_urls() + [
+comissao_url_patterns, namespace = ComissaoCrud.get_urls()
+
+comissao_url_patterns = comissao_url_patterns + [
     url(r'^(?P<pk>\d+)/composicao$',
         ComposicaoView.as_view(), name='composicao'),
     url(r'^(?P<pk>\d+)/materias-em-tramitacao$',
@@ -27,7 +29,7 @@ comissao_url_patterns = ComissaoCrud.get_urls() + [
 ]
 
 urlpatterns = [
-    url(r'^comissoes/', include(comissao_url_patterns)),
+    url(r'^comissoes/', include(comissao_url_patterns, namespace)),
 
     url(r'^sistema/comissoes/cargo/', include(CargoCrud.get_urls())),
     url(r'^sistema/comissoes/periodo-composicao/',
diff --git a/crud/base.py b/crud/base.py
index c778cdb7a..0010209ee 100644
--- a/crud/base.py
+++ b/crud/base.py
@@ -55,12 +55,12 @@ def make_pagination(index, num_pages):
 
 class BaseMixin(CrispyLayoutFormMixin):
 
-    @classmethod
-    def url_name(cls, suffix):
-        return '%s_%s' % (cls.model._meta.model_name, suffix)
+    @property
+    def namespace(self):
+        return self.model._meta.model_name
 
-    def resolve_url(self, suffix, args=None):
-        return reverse(self.url_name(suffix), args=args)
+    def resolve_url(self, url_name, args=None):
+        return reverse('%s:%s' % (self.namespace, url_name), args=args)
 
     @property
     def list_url(self):
@@ -195,13 +195,17 @@ class Crud:
         CrudUpdateView = _add_base(cls.UpdateView)
         CrudDeleteView = _add_base(cls.DeleteView)
 
-        return [url(regex, view.as_view(), name=view.url_name(suffix))
-                for regex, view, suffix in [
-                    (r'^$', CrudListView, 'list'),
-                    (r'^create$', CrudCreateView, 'create'),
-                    (r'^(?P<pk>\d+)$', CrudDetailView, 'detail'),
-                    (r'^(?P<pk>\d+)/edit$', CrudUpdateView, 'update'),
-                    (r'^(?P<pk>\d+)/delete$', CrudDeleteView, 'delete'), ]]
+        urlpatterns = [
+            url(r'^$', CrudListView.as_view(), name='list'),
+            url(r'^create$', CrudCreateView.as_view(), name='create'),
+            url(r'^(?P<pk>\d+)$', CrudDetailView.as_view(), name='detail'),
+            url(r'^(?P<pk>\d+)/edit$',
+                CrudUpdateView.as_view(), name='update'),
+            url(r'^(?P<pk>\d+)/delete$',
+                CrudDeleteView.as_view(), name='delete'),
+        ]
+
+        return urlpatterns, _add_base(object)().namespace
 
     @classonlymethod
     def build(cls, _model, _help_path):
diff --git a/crud/tests/test_base.py b/crud/tests/test_base.py
index 2021b8447..b8a94a4c9 100644
--- a/crud/tests/test_base.py
+++ b/crud/tests/test_base.py
@@ -140,11 +140,11 @@ def test_layout_detail_fieldsets(monkeypatch):
 
 
 def test_reverse():
-    assert '/countries/' == reverse('country_list')
-    assert '/countries/create' == reverse('country_create')
-    assert '/countries/2' == reverse('country_detail', args=(2,))
-    assert '/countries/2/edit' == reverse('country_update', args=(2,))
-    assert '/countries/2/delete' == reverse('country_delete', args=(2,))
+    assert '/countries/' == reverse('country:list')
+    assert '/countries/create' == reverse('country:create')
+    assert '/countries/2' == reverse('country:detail', args=(2,))
+    assert '/countries/2/edit' == reverse('country:update', args=(2,))
+    assert '/countries/2/delete' == reverse('country:delete', args=(2,))
 
 
 def assert_h1(res, title):
diff --git a/materia/urls.py b/materia/urls.py
index c19477a72..69b5c08a7 100644
--- a/materia/urls.py
+++ b/materia/urls.py
@@ -22,8 +22,11 @@ from materia.views import (AcompanhamentoConfirmarView,
                            TramitacaoEditView, TramitacaoView,
                            UnidadeTramitacaoCrud)
 
+materia_legislativa_patterns, namespace = MateriaLegislativaCrud.get_urls()
+
+
 urlpatterns = [
-    url(r'^materia/', include(MateriaLegislativaCrud.get_urls())),
+    url(r'^materia/', include(materia_legislativa_patterns, namespace)),
 
 
     url(r'^materia/(?P<pk>[0-9]+)/ta$',
diff --git a/norma/urls.py b/norma/urls.py
index 0085740df..ad3edf43a 100644
--- a/norma/urls.py
+++ b/norma/urls.py
@@ -14,13 +14,15 @@ from norma.views import (AssuntoNormaCrud, NormaEditView, NormaIncluirView,
 # o código abaixo:
 # url(r'^norma/(?P<pk>[0-9]+)/ta$', NormaTaView.as_view(), name='ta')
 # bem como a classe NormaTaView que está em norma.views
-norma_url_patterns = NormaTemporarioCrud.get_urls() + [
+norma_url_patterns, namespace = NormaTemporarioCrud.get_urls()
+
+norma_url_patterns += [
     url(r'^norma/(?P<pk>[0-9]+)/ta$',
         NormaTaView.as_view(), name='ta')
 ]
 
 urlpatterns = [
-    url(r'^norma/', include(norma_url_patterns)),
+    url(r'^norma/', include(norma_url_patterns, namespace)),
 
     url(r'^sistema/norma/tipo/', include(TipoNormaCrud.get_urls())),
     url(r'^sistema/norma/assunto/', include(AssuntoNormaCrud.get_urls())),
diff --git a/sessao/urls.py b/sessao/urls.py
index 79a9d471b..95fba3701 100644
--- a/sessao/urls.py
+++ b/sessao/urls.py
@@ -21,7 +21,9 @@ from sessao.views import (EditExpedienteOrdemDiaView, EditMateriaOrdemDiaView,
                           VotacaoNominalExpedienteView, VotacaoNominalView,
                           VotacaoView)
 
-urlpatterns_sessao = SessaoCrud.get_urls() + [
+urlpatterns_sessao, namespace = SessaoCrud.get_urls()
+
+urlpatterns_sessao = urlpatterns_sessao + [
     url(r'^(?P<pk>\d+)/expediente$',
         ExpedienteView.as_view(), name='expediente'),
     url(r'^(?P<pk>\d+)/presenca$',
@@ -103,7 +105,7 @@ sessao_rest = [
 ]
 
 urlpatterns = [
-    url(r'^sessao/', include(urlpatterns_sessao)),
+    url(r'^sessao/', include(urlpatterns_sessao, namespace)),
     url(r'^media/(?P<path>.*)$', serve,
         {'document_root': settings.MEDIA_ROOT}),
     url(r'^rest/', include(sessao_rest)),