diff --git a/install/hardware/asus/fix-asus-ptl-b9406-touchpad.sh b/install/hardware/asus/fix-asus-ptl-b9406-touchpad.sh
index 265e8114a8..285dedf3e4 100644
--- a/install/hardware/asus/fix-asus-ptl-b9406-touchpad.sh
+++ b/install/hardware/asus/fix-asus-ptl-b9406-touchpad.sh
@@ -8,13 +8,21 @@
 #
 # Mask the pressure axes with a quirks override, same pattern as the
 # Asus UX302LA entry in libinput's shipped 50-system-asus.quirks.
+#
+# libinput scans /usr/share/libinput for *.quirks and additionally reads the
+# single file /etc/libinput/local-overrides.quirks. It never scans /etc, so a
+# drop-in is the only way to ship a quirk without editing the one override
+# file users hand-edit themselves.
+#
+# The pad's event node is tagged ID_INPUT_MOUSE rather than ID_INPUT_TOUCHPAD,
+# so a MatchUdevType=touchpad constraint would skip the section. Bus, vendor,
+# product and DMI already pin the device exactly.
 
 if omarchy-hw-asus-expertbook-b9406; then
-  mkdir -p /etc/libinput
-  cat > /etc/libinput/asus-expertbook-b9406.quirks <<'EOF'
+  mkdir -p /usr/share/libinput
+  cat > /usr/share/libinput/99-omarchy-asus-b9406-touchpad.quirks <<'EOF'
 [ASUS ExpertBook B9406 Touchpad]
 MatchBus=i2c
-MatchUdevType=touchpad
 MatchVendor=0x093A
 MatchProduct=0x4F05
 MatchDMIModalias=dmi:*svnASUS*:pn*B9406*
diff --git a/migrations/1785114924.sh b/migrations/1785114924.sh
new file mode 100644
index 0000000000..da9a33b2d7
--- /dev/null
+++ b/migrations/1785114924.sh
@@ -0,0 +1,7 @@
+echo "Fix ASUS ExpertBook B9406 touchpad quirk (takes effect at next login)"
+
+omarchy-hw-asus-expertbook-b9406 || exit 0
+
+sudo rm -f /etc/libinput/asus-expertbook-b9406.quirks
+sudo env OMARCHY_PATH="$OMARCHY_PATH" PATH="$PATH" \
+  bash -euo pipefail "$OMARCHY_PATH/install/hardware/asus/fix-asus-ptl-b9406-touchpad.sh"