diff --git a/hardware/abstract_hardware.py b/hardware/abstract_hardware.py
index 0cae00605ec403df717b8c37b7ab40743645612e..fa2f99fa91dded2b55cdcfba3c633e452899fedd 100644
--- a/hardware/abstract_hardware.py
+++ b/hardware/abstract_hardware.py
@@ -29,7 +29,6 @@ class TxAbstract(ABC):
         self._inj_time = None
         self._dps_state = 'off'
         self._adc_gain = 1.
-        self.polarity = polarity
         self.inj_time = inj_time
         self.exec_logger.debug(f'{self.board_name} TX initialization')