diff --git a/devices/devices/hardware_device.py b/devices/devices/hardware_device.py
index 4028181bd775de77bb9a9ec3feb1baca0059374c..a25b863ebc8255fa05c02a5f420f23f309ebf0fb 100644
--- a/devices/devices/hardware_device.py
+++ b/devices/devices/hardware_device.py
@@ -15,7 +15,7 @@ from abc import ABCMeta, abstractmethod
 
 # PyTango imports
 from tango.server import Device, command, DeviceMeta, attribute
-from tango import DevState, DebugIt, Attribute, DeviceProxy
+from tango import DevState, DebugIt, Attribute, DeviceProxy, AttrWriteType
 # Additional import
 
 from clients.attribute_wrapper import attribute_wrapper