diff --git a/pkgs/eyezoom.nix b/pkgs/eyezoom.nix
index 0403171..81d4b7a 100644
--- a/pkgs/eyezoom.nix
+++ b/pkgs/eyezoom.nix
@@ -12,8 +12,10 @@ H="$2"
 offx="$3"
 offy="$4"
 
-HFACTOR=10
-WFACTOR=4
+ZH=16384
+ZW=320
+
+WDIV=4
 
 WIDEDIV=2
 
@@ -23,11 +25,11 @@ zoomaccel=-0.9
 
 case "$arg" in
   eye)
-    ${pkgs.wmctrl}/bin/wmctrl -R ':ACTIVE:' -e 0,$offx,$(( offy - (H * HFACTOR / 2) + (H / 2) )),$W,$((H*HFACTOR))
+    ${pkgs.wmctrl}/bin/wmctrl -R ':ACTIVE:' -e 0,$(( offx - (ZW / 2) + (W / 2) )),$(( offy - (ZH / 2) + (H / 2) )),$ZW,$((ZH))
     xinput set-prop "pointer:Logitech MX Vertical" "libinput Accel Speed" $zoomaccel
   ;;
   tiktok)
-    ${pkgs.wmctrl}/bin/wmctrl -R ':ACTIVE:' -e 0,$(( offx - ((W/WFACTOR)/2) + (W/2))),$offy,$((W/WFACTOR)),$H
+    ${pkgs.wmctrl}/bin/wmctrl -R ':ACTIVE:' -e 0,$(( offx - ((W/WDIV)/2) + (W/2))),$offy,$((W/WDIV)),$H
     xinput set-prop "pointer:Logitech MX Vertical" "libinput Accel Speed" $normalaccel
   ;;
   wide)