diff --git a/taiga/projects/issues/models.py b/taiga/projects/issues/models.py
index 3587225c..6ad645b6 100644
--- a/taiga/projects/issues/models.py
+++ b/taiga/projects/issues/models.py
@@ -25,12 +25,11 @@ from picklefield.fields import PickledObjectField
 
 from taiga.base.models import NeighborsMixin
 from taiga.base.utils.slug import ref_uniquely
-from taiga.base.notifications.models import WatchedMixin
-from taiga.projects.mixins.blocked.models import BlockedMixin
+from taiga.projects.notifications.models import WatchedMixin
+from taiga.projects.mixins.blocked import BlockedMixin
 
 
-
-class Issue(NeighborsMixin, WatchedMixin, BlockedMixin):
+class Issue(NeighborsMixin, WatchedMixin, BlockedMixin, models.Model):
     ref = models.BigIntegerField(db_index=True, null=True, blank=True, default=None,
                                  verbose_name=_("ref"))
     owner = models.ForeignKey(settings.AUTH_USER_MODEL, null=True, blank=True, default=None,
diff --git a/taiga/projects/mixins/blocked/models.py b/taiga/projects/mixins/blocked.py
similarity index 97%
rename from taiga/projects/mixins/blocked/models.py
rename to taiga/projects/mixins/blocked.py
index 6c988a88..43ce45e7 100644
--- a/taiga/projects/mixins/blocked/models.py
+++ b/taiga/projects/mixins/blocked.py
@@ -14,6 +14,11 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+
+##########
+# MODELS #
+##########
+
 from django.db import models
 from django.utils.translation import ugettext_lazy as _
 from django.dispatch import receiver
diff --git a/taiga/projects/mixins/blocked/tests/foo/__init__.py b/taiga/projects/mixins/blocked/tests/foo/__init__.py
deleted file mode 100644
index e69de29b..00000000
diff --git a/taiga/projects/mixins/blocked/tests/__init__.py b/taiga/projects/mixins/tests/__init__.py
similarity index 100%
rename from taiga/projects/mixins/blocked/tests/__init__.py
rename to taiga/projects/mixins/tests/__init__.py
diff --git a/taiga/projects/mixins/blocked/__init__.py b/taiga/projects/mixins/tests/blocked/foo/__init__.py
similarity index 100%
rename from taiga/projects/mixins/blocked/__init__.py
rename to taiga/projects/mixins/tests/blocked/foo/__init__.py
diff --git a/taiga/projects/mixins/blocked/tests/foo/models.py b/taiga/projects/mixins/tests/blocked/foo/models.py
similarity index 93%
rename from taiga/projects/mixins/blocked/tests/foo/models.py
rename to taiga/projects/mixins/tests/blocked/foo/models.py
index c38af868..1f7e259c 100644
--- a/taiga/projects/mixins/blocked/tests/foo/models.py
+++ b/taiga/projects/mixins/tests/blocked/foo/models.py
@@ -14,7 +14,7 @@
 # You should have received a copy of the GNU Affero General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-from taiga.projects.mixins.blocked.models import BlockedMixin
+from taiga.projects.mixins.blocked import BlockedMixin
 
 
 class BlockedFoo(BlockedMixin):
diff --git a/taiga/projects/mixins/blocked/tests/tests_models.py b/taiga/projects/mixins/tests/blocked/tests_models.py
similarity index 100%
rename from taiga/projects/mixins/blocked/tests/tests_models.py
rename to taiga/projects/mixins/tests/blocked/tests_models.py
diff --git a/taiga/projects/tasks/models.py b/taiga/projects/tasks/models.py
index 3503253d..b98cf588 100644
--- a/taiga/projects/tasks/models.py
+++ b/taiga/projects/tasks/models.py
@@ -27,9 +27,7 @@ from taiga.base.utils.slug import ref_uniquely
 from taiga.projects.notifications.models import WatchedMixin
 from taiga.projects.userstories.models import UserStory
 from taiga.projects.milestones.models import Milestone
-from taiga.projects.mixins.blocked.models import BlockedMixin
-
-import reversion
+from taiga.projects.mixins.blocked import BlockedMixin
 
 
 class Task(WatchedMixin, BlockedMixin):