diff --git a/lib/model/smartdeviceplugin.py b/lib/model/smartdeviceplugin.py
index 15989fba16..259243ee2d 100644
--- a/lib/model/smartdeviceplugin.py
+++ b/lib/model/smartdeviceplugin.py
@@ -712,7 +712,7 @@ def send_command(self, command, value=None, return_result=False, **kwargs):
         try:
             data_dict = self._commands.get_send_data(command, value, **kwargs)
             data_dict['command'] = command
-            if value is not None:
+            if value is not None and self._commands_read.get(command, None) is not None:
                 data_dict['returntype'] = type(value)
                 data_dict['returnvalue'] = value
             data_dict['retry'] = kwargs.get('retry') or 0