diff --git a/heat_pump.py b/heat_pump.py
index 6a29f5e..f4e1cbb 100644
--- a/heat_pump.py
+++ b/heat_pump.py
@@ -7,7 +7,7 @@ import math
 
 class HeatPump:
     def __init__(self, device_name: str, ip_address: str, port: int = 502,
-                 excel_path: str = "modbus_registers/heat_pump_registers_modbus.xlsx",
+                 excel_path: str = "modbus_registers/heat_pump_registers.xlsx",
                  sheet_name: str = "Register_Map"):
         self.device_name = device_name
         self.ip = ip_address