diff --git a/custom_components/smaev/number.py b/custom_components/smaev/number.py
index 28ec7b4..6b08c5e 100644
--- a/custom_components/smaev/number.py
+++ b/custom_components/smaev/number.py
@@ -99,7 +99,7 @@ class SmaEvChargerNumberEntityDescription(NumberEntityDescription):
         key="charge_power_limit",
         translation_key="charge_power_limit",
         type=SMAEV_PARAMETER,
-        channel="Parameter.Inverter.WMax",
+        channel="Parameter.Inverter.WMaxIn",
         native_step=1,
         mode=NumberMode.BOX,
         native_unit_of_measurement=UnitOfPower.WATT,