diff --git a/bin/input-event b/bin/input-event
index 0320921..296df7f 100755
--- a/bin/input-event
+++ b/bin/input-event
@@ -45,7 +45,8 @@ case "$event,$use,$(uname -n),$name" in
         xinput set-ptr-feedback $device 3 3 1
         ;;
     *,XISlavePointer,*,"TPPS/2 IBM TrackPoint")
-        xinput set-ptr-feedback $device 2 5 1
+        xinput set-ptr-feedback $device 2 5 1 # no effect?
+        xinput set-float-prop $device 'libinput Accel Speed' 0.5
         ;;
     *,XISlavePointer,zoro,"SynPS/2 Synaptics TouchPad")
         xinput set-props $device "libinput Natural Scrolling Enabled" 1