diff --git a/agent/plugins/domainjoin/domainjoin_unix_script.go b/agent/plugins/domainjoin/domainjoin_unix_script.go
index 133209d53..7424bfe87 100755
--- a/agent/plugins/domainjoin/domainjoin_unix_script.go
+++ b/agent/plugins/domainjoin/domainjoin_unix_script.go
@@ -552,7 +552,8 @@ print_vars() {
 #########################################################
 configure_hosts_file() {
     fullhost="${COMPUTER_NAME}.${DIRECTORY_NAME}"  # ,, means lowercase since bash v4
-    ip_address="$(ip -o -4 addr show eth0 | awk '{print $4}' | cut -d/ -f1)"
+    if_name=$(ip route list | grep default | grep -E  'dev (\w+)' -o | awk '{print $2}')
+    ip_address="$(ip -o -4 addr show $if_name | awk '{print $4}' | cut -d/ -f1)"
     cleanup_comment='# Generated by Domain Join SSMDocument'
     sed -i".orig" -r\
         "/^.*${cleanup_comment}/d;\