diff --git a/tasks/main.yml b/tasks/main.yml
index cc0c0a5..16e7e4d 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -115,11 +115,11 @@
       WOL Mode: {{ wol_mode }}
       MAC Addresses: {{ wol_mac_addresses | join(', ') }}
 
-
 - name: Start tcpdump to capture WOL packet
   become: true
   ansible.builtin.shell: |
-    tcpdump -i {{ en_interfaces[0] }} -nn -c 1 udp port {{ wol_port }}
+    timeout 10 tcpdump -i {{ en_interfaces[0] }} -nn -c 1 \
+    'udp and port {{ wol_port }} and (udp[8:4] = 0xffffffff)'
   register: tcpdump_result
   async: 12
   poll: 0
@@ -142,6 +142,6 @@
 - name: Check if WOL packet was received
   ansible.builtin.assert:
     that:
-      - "'UDP' in tcpdump_status.stdout"
-    success_msg: "✅ Wake-on-LAN packet received by host"
-    fail_msg: "❌ No Wake-on-LAN packet detected"
\ No newline at end of file
+      - tcpdump_status.rc == 0
+    success_msg: "✅ Wake-on-LAN magic packet received by host"
+    fail_msg: "❌ Wake-on-LAN magic packet NOT detected"
\ No newline at end of file