diff --git a/COMPATIBILITY b/COMPATIBILITY
index 2cad115..2906804 100644
--- a/COMPATIBILITY
+++ b/COMPATIBILITY
@@ -227,6 +227,7 @@ Toshiba 1410-303		(ALPS touchpad)
 Toshiba A20			(ALPS touchpad)
 Toshiba EX1/524CDET		(ALPS touchpad)
 Toshiba Portege A100
+Toshiba Portege 3500		(ALPS touchpad)
 Toshiba Satellite 1400-103	(ALPS touchpad)
 Toshiba Satellite A40		(ALPS touchpad)
 Toshiba Satellite A50-543	(ALPS touchpad)