diff --git a/hwdb.d/70-mouse.hwdb b/hwdb.d/70-mouse.hwdb
index 1d6b489e85..17c9e2e507 100644
--- a/hwdb.d/70-mouse.hwdb
+++ b/hwdb.d/70-mouse.hwdb
@@ -275,6 +275,7 @@ mouse:usb:v04b3p3107:name:*
 # Kensington Expert Mouse trackball
 mouse:usb:v047dp1020:*Kensington Expert Mouse*:*
  ID_INPUT_TRACKBALL=1
+ MOUSE_DPI=400@125
 
 ##########################################
 # Lenovo