diff --git a/tune-mouse b/tune-mouse
index c234feb..6ab0d17 100755
--- a/tune-mouse
+++ b/tune-mouse
@@ -41,7 +41,7 @@ if xinput list | grep -q "VEN_04F3:00 04F3:31D1 Touchpad"; then
     xinput set-prop 'VEN_04F3:00 04F3:31D1 Touchpad' "Synaptics Palm Detection" 1
 
     # 10, 200 by default
-    xinput set-prop 'VEN_04F3:00 04F3:31D1 Touchpad' 'Synaptics Palm Dimensions'  5 200
+    xinput set-prop 'VEN_04F3:00 04F3:31D1 Touchpad' 'Synaptics Palm Dimensions'  4 40
 fi
 
 # nb2