diff --git a/src/pymodaq_plugins_andor/daq_move_plugins/daq_move_ShamrockPll.py b/src/pymodaq_plugins_andor/daq_move_plugins/daq_move_ShamrockPll.py
index 5dfe5c1..f21ff50 100644
--- a/src/pymodaq_plugins_andor/daq_move_plugins/daq_move_ShamrockPll.py
+++ b/src/pymodaq_plugins_andor/daq_move_plugins/daq_move_ShamrockPll.py
@@ -29,7 +29,7 @@ class DAQ_Move_ShamrockPll(DAQ_Move_base):
 
 
     spectro_params = [
-        {'title': 'Spectro SN:', 'name': 'spectro_sn', 'type': 'list', 'value': SPEC_NAMES[0],
+        {'title': 'Spectro SN:', 'name': 'spectro_sn', 'type': 'list', 'value': SPEC_NAMES[0] if SPEC_NAMES else '',
             'limits': SPEC_NAMES},
         {'title': 'Spectro Settings:', 'name': 'spectro_settings', 'type': 'group', 'expanded': True, 'children': [
             {'title': 'Wavelength (nm):', 'name': 'spectro_wl', 'type': 'float', 'value': 600, 'min': 0},
diff --git a/src/pymodaq_plugins_andor/daq_viewer_plugins/plugins_2D/daq_2Dviewer_AndorCCDPll.py b/src/pymodaq_plugins_andor/daq_viewer_plugins/plugins_2D/daq_2Dviewer_AndorCCDPll.py
index b7f3850..e6f11a0 100644
--- a/src/pymodaq_plugins_andor/daq_viewer_plugins/plugins_2D/daq_2Dviewer_AndorCCDPll.py
+++ b/src/pymodaq_plugins_andor/daq_viewer_plugins/plugins_2D/daq_2Dviewer_AndorCCDPll.py
@@ -95,7 +95,7 @@ class DAQ_2DViewer_AndorCCDPll(CameraBasePyLabLib):
     hardware_averaging = True  # will use the accumulate acquisition mode if averaging is necessary
 
     cam_params = cam_params
-    serial_params = [{'title': 'Camera:', 'name': 'serial_number', 'type': 'list', 'value': CAM_NAMES[0],
+    serial_params = [{'title': 'Camera:', 'name': 'serial_number', 'type': 'list', 'value': CAM_NAMES[0] if CAM_NAMES else '',
                       'limits': CAM_NAMES}]
     params = comon_parameters + serial_params + cam_params
 
diff --git a/src/pymodaq_plugins_andor/daq_viewer_plugins/plugins_2D/daq_2Dviewer_AndorSCMOSPll.py b/src/pymodaq_plugins_andor/daq_viewer_plugins/plugins_2D/daq_2Dviewer_AndorSCMOSPll.py
index 7e85417..6c9e31f 100644
--- a/src/pymodaq_plugins_andor/daq_viewer_plugins/plugins_2D/daq_2Dviewer_AndorSCMOSPll.py
+++ b/src/pymodaq_plugins_andor/daq_viewer_plugins/plugins_2D/daq_2Dviewer_AndorSCMOSPll.py
@@ -76,7 +76,7 @@ class DAQ_2DViewer_AndorSCMOSPll(CameraBasePyLabLib):
     hardware_averaging = True  # will use the accumulate acquisition mode if averaging is neccessary
     live_mode_available = True
 
-    serial_params = [{'title': 'Camera:', 'name': 'serial_number', 'type': 'list', 'value': CAM_NAMES[0],
+    serial_params = [{'title': 'Camera:', 'name': 'serial_number', 'type': 'list', 'value': CAM_NAMES[0] if CAM_NAMES else '',
                       'limits': CAM_NAMES}]
     params = comon_parameters + serial_params + cam_params