diff --git a/02.nicsensor/nicsensor.sh b/02.nicsensor/nicsensor.sh
index a446bab..2d6c336 100644
--- a/02.nicsensor/nicsensor.sh
+++ b/02.nicsensor/nicsensor.sh
@@ -277,7 +277,7 @@ set_configuration_donghu(){
     is_have_pca9641=0
 
     i2c_bus=3
-
+    pca9548_slave="0x70"
     # set pca9548 switch channel
     if [ $pcie_slot -eq 0 ];then
         pca9548_channel="0x80"