diff --git a/hwdb.d/70-mouse.hwdb b/hwdb.d/70-mouse.hwdb
index 86470bcfda..efd67da555 100644
--- a/hwdb.d/70-mouse.hwdb
+++ b/hwdb.d/70-mouse.hwdb
@@ -611,6 +611,10 @@ mouse:usb:v046dpc548:name:Logitech USB Receiver Mouse:*
 mouse:bluetooth:v046dpb035:name:MX Master 3S B Mouse:*
  MOUSE_DPI=1000@142
 
+# Logitech MX Master 4 (via Bluetooth)
+mouse:bluetooth:v046dpb042:name:MX Master 4 Mouse:*
+ MOUSE_DPI=1000@142
+
 # Logitech MX Ergo
 mouse:usb:v046dp406f:name:Logitech MX Ergo:*
 mouse:usb:v046dpc52b:name:Logitech Unifying Device. Wireless PID:406f:*