diff --git a/ohmpi/hardware_components/mb_2024_0_2.py b/ohmpi/hardware_components/mb_2024_0_2.py
index 5cfe44887d9c9bbc5eb94b1e7b3f31e356e43dc7..7f72118bc985b839c8911296b58af55ff1d11cf7 100644
--- a/ohmpi/hardware_components/mb_2024_0_2.py
+++ b/ohmpi/hardware_components/mb_2024_0_2.py
@@ -84,7 +84,7 @@ class Tx(Tx_mb_2023):
         self._current = 0
         # Initialize LEDs
         if self.connect:
-        self.pin4 = self.mcp_board.get_pin(4)  # OhmPi_run
+            self.pin4 = self.mcp_board.get_pin(4)  # OhmPi_run
             self.pin4.direction = Direction.OUTPUT
             self.pin4.value = True
             self.pin5 = self.mcp_board.get_pin(5)  # OhmPi_measure