diff --git a/tasks/main.yml b/tasks/main.yml
index babac58..6271774 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -118,14 +118,14 @@
 
 - name: Start tcpdump to capture WOL packet
   ansible.builtin.shell: |
-    timeout 10 tcpdump -i {{ en_interfaces }} -nn -c 1 udp port {{ wol_port }}
+    timeout 10 tcpdump -i {{ en_interfaces[0] }} -nn -c 1 udp port {{ wol_port }}
   register: tcpdump_result
   async: 12
   poll: 0
 
 - name: Send Wake-on-LAN packet from localhost
   ansible.builtin.wakeonlan:
-    mac: "{{ wol_mac_addresses }}"
+    mac: "{{ wol_mac_addresses[0] }}"
     port: "{{ wol_port }}"
     broadcast: 255.255.255.255
   delegate_to: localhost