diff --git a/doc/descriptions/unsupported.desc b/doc/descriptions/unsupported.desc
index efaa4fd3c..a422b7210 100644
--- a/doc/descriptions/unsupported.desc
+++ b/doc/descriptions/unsupported.desc
@@ -442,7 +442,7 @@
 :interface "USB"
 :usbid "0x04a9" "0x1904"
 :status :unsupported
-:comment "GL843?"
+:comment "Actually a GL846, by hardware inspection"
 :url "http://lists.alioth.debian.org/pipermail/sane-devel/2008-November/023133.html"
 
 :model "CanoScan LiDE 200"
@@ -472,6 +472,13 @@
 :status :unsupported
 :comment "Philips chip. Backend started, see link"
 
+:model "CanoScan LiDE 700F"
+:interface "USB"
+:url "http://lists.alioth.debian.org/pipermail/sane-devel/2009-June/024971.html"
+:usbid "0x04a9" "0x221f"
+:status :unsupported
+:comment "Actually GL847 based? to be added to genesys backend"
+
 :model "FS4000"
 :url "/unsupported/canon-fs4000.html"
 :interface "USB SCSI"