diff --git a/data/isdv4-48b7.tablet b/data/isdv4-48b7.tablet
index f678fd3b..0bff657d 100644
--- a/data/isdv4-48b7.tablet
+++ b/data/isdv4-48b7.tablet
@@ -1,4 +1,7 @@
 # Active electrostatic (AES) sensor used by the HP EliteBook x360 1040 G5
+#
+# sysinfo.XkevsUVUax.tar.gz
+# https://github.com/linuxwacom/wacom-hid-descriptors/issues/338
 
 [Device]
 Name=Wacom ISDv4 48b7