diff --git a/src/add-ons/input_server/devices/mouse/MouseInputDevice.cpp b/src/add-ons/input_server/devices/mouse/MouseInputDevice.cpp
index 6ae9dc2dbd..bc6a7a25a1 100644
--- a/src/add-ons/input_server/devices/mouse/MouseInputDevice.cpp
+++ b/src/add-ons/input_server/devices/mouse/MouseInputDevice.cpp
@@ -308,6 +308,9 @@ MouseDevice::_BuildShortName() const
 
 	if (name == "ps2")
 		name = "PS/2";
+
+	if (name.Length() < 4)
+		name.ToUpper();
 	else
 		name.Capitalize();