diff --git a/ereuse_devicehub/inventory/forms.py b/ereuse_devicehub/inventory/forms.py
index 65d2b5c3..b00d8181 100644
--- a/ereuse_devicehub/inventory/forms.py
+++ b/ereuse_devicehub/inventory/forms.py
@@ -136,9 +136,13 @@ class FilterForm(FlaskForm):
         if self.lot_id:
             self.lot = self.lots.filter(Lot.id == self.lot_id).one()
             device_ids = (d.id for d in self.lot.devices)
-            self.devices = Device.query.filter(Device.id.in_(device_ids))
+            self.devices = Device.query.filter(Device.id.in_(device_ids)).filter(
+                Device.binding == None
+            )
         else:
-            self.devices = Device.query.filter(Device.owner_id == g.user.id)
+            self.devices = Device.query.filter(Device.owner_id == g.user.id).filter(
+                Device.binding == None
+            )
             if self.only_unassigned:
                 self.devices = self.devices.filter_by(lots=None)