diff --git a/WHENCE b/WHENCE
index 34b5d0a..ac174fe 100644
--- a/WHENCE
+++ b/WHENCE
@@ -601,6 +601,7 @@ File: cis/LA-PCM.cis
       cis/NE2K.cis
       cis/tamarack.cis
       cis/PE-200.cis
+      cis/PE520.cis
 
 Licence: GPL
 
diff --git a/cis/PE520.cis b/cis/PE520.cis
new file mode 100644
index 0000000..f34fa91
Binary files /dev/null and b/cis/PE520.cis differ