diff --git a/tangostationcontrol/tangostationcontrol/devices/apsct.py b/tangostationcontrol/tangostationcontrol/devices/apsct.py
index 7c1872e73c8fcdffa6ca9e07a7b3cd059bde044f..add4e146cdb5fb4282a49f9394c552465b088a26 100644
--- a/tangostationcontrol/tangostationcontrol/devices/apsct.py
+++ b/tangostationcontrol/tangostationcontrol/devices/apsct.py
@@ -14,7 +14,7 @@
 # PyTango imports
 from tango import DebugIt
 from tango.server import run, command
-from tango import AttrWriteType
+from tango import AttrWriteType, DevState
 import numpy
 # Additional import
 
diff --git a/tangostationcontrol/tangostationcontrol/devices/recv.py b/tangostationcontrol/tangostationcontrol/devices/recv.py
index a920dd59e393da0d5497700e31fb064fedae7ad9..4ac93d85abcf66d4c8dc25ab60a1fae89fbef794 100644
--- a/tangostationcontrol/tangostationcontrol/devices/recv.py
+++ b/tangostationcontrol/tangostationcontrol/devices/recv.py
@@ -15,7 +15,7 @@
 from tango import DebugIt
 from tango.server import run, command
 from tango.server import device_property, attribute
-from tango import AttrWriteType
+from tango import AttrWriteType, DevState
 import numpy
 
 # Additional import
diff --git a/tangostationcontrol/tangostationcontrol/devices/unb2.py b/tangostationcontrol/tangostationcontrol/devices/unb2.py
index 9ca54c5fbc4eaaba2a205744cad23af1bb139691..c4f623c5df5846858dd8d0aa0ab5fd53dff56ac3 100644
--- a/tangostationcontrol/tangostationcontrol/devices/unb2.py
+++ b/tangostationcontrol/tangostationcontrol/devices/unb2.py
@@ -14,7 +14,7 @@
 # PyTango imports
 from tango.server import run, command
 from tango.server import device_property, attribute
-from tango import AttrWriteType, DebugIt
+from tango import AttrWriteType, DebugIt, DevState
 # Additional import
 
 from tangostationcontrol.common.entrypoint import entry