diff --git a/hm_pyhelper/miner_param.py b/hm_pyhelper/miner_param.py
index aab1928..95fc050 100644
--- a/hm_pyhelper/miner_param.py
+++ b/hm_pyhelper/miner_param.py
@@ -118,10 +118,10 @@ def get_gateway_mfr_command(sub_command: str, slot: int = 0) -> list:
 
     if gateway_mfr_version >= Version('0.2.0'):
         try:
-            if os.getenv('SWARM_KEY_URI'):
+            if os.getenv('SWARM_KEY_URI_OVERRIDE'):
                 device_arg = [
                     '--device',
-                    os.getenv('SWARM_KEY_URI')
+                    os.getenv('SWARM_KEY_URI_OVERRIDE')
                 ]
             else:
                 device_arg = [