diff --git a/roles/network_plugin/macvlan/tasks/main.yml b/roles/network_plugin/macvlan/tasks/main.yml
index a274fafb1..c35f3597f 100644
--- a/roles/network_plugin/macvlan/tasks/main.yml
+++ b/roles/network_plugin/macvlan/tasks/main.yml
@@ -11,7 +11,7 @@
 
 - name: Macvlan | Retrieve default gateway network interface
   become: false
-  raw: ip -4 route list 0/0 | sed 's/.*dev \([[:alnum:]]*\).*/\1/'
+  raw: ip -4 route list 0/0 | sed -E 's/.* dev ([^ ]+).*/\1/'
   changed_when: false
   register: node_default_gateway_interface_cmd