diff --git a/ereuse_devicehub/resources/device/definitions.py b/ereuse_devicehub/resources/device/definitions.py
index 7960efad..e96302f1 100644
--- a/ereuse_devicehub/resources/device/definitions.py
+++ b/ereuse_devicehub/resources/device/definitions.py
@@ -33,7 +33,7 @@ class DeviceDef(Resource):
 
         path = '/<{value}:dev1_id>/merge/<{value}:dev2_id>'.format(value=self.ID_CONVERTER.value)
 
-        self.add_url_rule(path, view_func=device_merge, methods={'POST'})
+        # self.add_url_rule(path, view_func=device_merge, methods={'POST'})
 
 
 class ComputerDef(DeviceDef):
diff --git a/tests/test_merge.py b/tests/test_merge.py
index 52d3436d..b6998342 100644
--- a/tests/test_merge.py
+++ b/tests/test_merge.py
@@ -14,6 +14,38 @@ from tests.conftest import file as import_snap
 
 
 @pytest.mark.mvp
+def test_deactivate_merge(app: Devicehub, user: UserClient):
+    """ Check if is correct to do a manual merge """
+    snapshot1, _ = user.post(import_snap('real-custom.snapshot.11'), res=m.Snapshot)
+    snapshot2, _ = user.post(import_snap('real-hp.snapshot.11'), res=m.Snapshot)
+    pc1_id = snapshot1['device']['id']
+    pc2_id = snapshot2['device']['id']
+
+    with app.app_context():
+        pc1 = d.Device.query.filter_by(id=pc1_id).one()
+        pc2 = d.Device.query.filter_by(id=pc2_id).one()
+        n_actions1 = len(pc1.actions)
+        n_actions2 = len(pc2.actions)
+        action1 = pc1.actions[0]
+        action2 = pc2.actions[0]
+        assert not action2 in pc1.actions
+
+        tag = Tag(id='foo-bar', owner_id=user.user['id'])
+        pc2.tags.add(tag)
+        db.session.add(pc2)
+        db.session.commit()
+
+        components1 = [com for com in pc1.components]
+        components2 = [com for com in pc2.components]
+        components1_excluded = [com for com in pc1.components if not com in components2]
+        assert pc1.hid != pc2.hid
+        assert not tag in pc1.tags
+
+        uri = '/devices/%d/merge/%d' % (pc1_id, pc2_id)
+        _, code = user.post({'id': 1}, uri=uri, status=404)
+        assert code.status == '404 NOT FOUND'
+
+# @pytest.mark.mvp
 def test_simple_merge(app: Devicehub, user: UserClient):
     """ Check if is correct to do a manual merge """
     snapshot1, _ = user.post(import_snap('real-custom.snapshot.11'), res=m.Snapshot)
@@ -58,7 +90,7 @@ def test_simple_merge(app: Devicehub, user: UserClient):
         for com in components1_excluded:
             assert not com in pc1.components
 
-@pytest.mark.mvp
+# @pytest.mark.mvp
 def test_merge_two_device_with_differents_tags(app: Devicehub, user: UserClient):
     """ Check if is correct to do a manual merge of 2 diferents devices with diferents tags """
     snapshot1, _ = user.post(import_snap('real-custom.snapshot.11'), res=m.Snapshot)