diff --git a/iso/bootstrap_admin_node.sh b/iso/bootstrap_admin_node.sh
index 77186c669..d1d0440da 100755
--- a/iso/bootstrap_admin_node.sh
+++ b/iso/bootstrap_admin_node.sh
@@ -266,7 +266,7 @@ fi
 
 if [[ "${OLD_ADMIN_INTERFACE}" != "${ADMIN_INTERFACE}" ]]; then
   echo "Saving ADMIN_INTERFACE value"
-  sed -ie "s/^ADMIN_INTERFACE=.*/ADMIN_INTERFACE=${ADMIN_INTERFACE}/g" \
+  sed -i "s/^ADMIN_INTERFACE=.*/ADMIN_INTERFACE=${ADMIN_INTERFACE}/g" \
     ${BOOTSTRAP_NODE_CONFIG}
 fi