diff --git a/ohmpi/hardware_components/mb_2023_0_X.py b/ohmpi/hardware_components/mb_2023_0_X.py
index e9dfefd7167346f6b20104a4d660c036da3aa993..3109527a6babd210a2c76af85e2dc9d033eb2e7c 100644
--- a/ohmpi/hardware_components/mb_2023_0_X.py
+++ b/ohmpi/hardware_components/mb_2023_0_X.py
@@ -207,6 +207,7 @@ class Tx(TxAbstract):
         if voltage is not None:
             self.pwr.voltage = voltage
         self.exec_logger.debug(f'Voltage pulse of {polarity*self.pwr.voltage:.3f} V for {length:.3f} s')
+        print('inject')
         self.inject(polarity=polarity, injection_duration=length)
         self.exec_logger.event(f'{self.board_name}\ttx_voltage_pulse\tend\t{datetime.datetime.utcnow()}')