diff --git a/ChangeLog b/ChangeLog
index f853c57b8..ae6d5f3f7 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -7,6 +7,7 @@
 	* backend/plustek.c: changed version number
 	* backend/plustek-pp.*: changed file headers and copyright info
 	  applied some minor fixes
+	* doc/unsupported.desc: Added Plustek OpticPro S28 and S48
 
 2003-09-23  Frank Zago  <fzago at austin dot rr dot com>
 
diff --git a/doc/descriptions/unsupported.desc b/doc/descriptions/unsupported.desc
index 688d86228..55e16d3b0 100644
--- a/doc/descriptions/unsupported.desc
+++ b/doc/descriptions/unsupported.desc
@@ -712,6 +712,16 @@
 :status :unsupported
 :comment "Unsupported. No details yet."
 
+:model "OpticPro S28"
+:interface "USB"
+:status :unsupported
+:comment "Uses Plustek ASIC."
+
+:model "OpticPro S48"
+:interface "USB"
+:status :unsupported
+:comment "Uses Plustek ASIC."
+
 :model "Spectra ADF"
 ;:url ""
 :interface "Proprietary"