diff --git a/symbols/pan-vm-fw.txt b/symbols/pan-vm-fw.txt
index 2b427dd..a1b1fb3 100644
--- a/symbols/pan-vm-fw.txt
+++ b/symbols/pan-vm-fw.txt
@@ -1 +1,2 @@
-Public Domain from GNS3
\ No newline at end of file
+Based on Firewall logo Public Domain GNS3
+And Palo Alto logo from https://www.paloaltonetworks.com