diff --git a/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py b/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py
index b9fa259317..96a7b9e231 100644
--- a/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py
+++ b/platform/mellanox/mlnx-platform-api/sonic_platform/chassis.py
@@ -123,7 +123,7 @@ class Chassis(ChassisBase):
 
         if self._sfp_list:
             if self.sfp_module.SFP.shared_sdk_handle:
-                self.sfp_module.deinitialize_sdk_handle(sfp_module.SFP.shared_sdk_handle)
+                self.sfp_module.deinitialize_sdk_handle(self.sfp_module.SFP.shared_sdk_handle)
 
     @property
     def RJ45_port_list(self):