diff --git a/ohmpi/hardware_system.py b/ohmpi/hardware_system.py
index d1f075b0f3ef4d0223a574b5b281bac372106e45..7582fa5caa1deb0b9892e846361e82e349c6d356 100644
--- a/ohmpi/hardware_system.py
+++ b/ohmpi/hardware_system.py
@@ -154,7 +154,7 @@ class OhmPiHardware:
         if not self.tx.pwr.voltage_adjustable:
             self.tx._pwr_latency = 0
         self.tx.polarity = 0
-        self.tx.pwr._current_max = current_max
+        self.tx.pwr._current_max = self.current_max
 
         # Initialize Muxes
         self._cabling = kwargs.pop('cabling', {})