diff --git a/Falcon BMS Alternative Launcher/Input/JoyAssgn.cs b/Falcon BMS Alternative Launcher/Input/JoyAssgn.cs
index bc826fe..34a40d2 100644
--- a/Falcon BMS Alternative Launcher/Input/JoyAssgn.cs	
+++ b/Falcon BMS Alternative Launcher/Input/JoyAssgn.cs	
@@ -196,8 +196,9 @@ public string GetDeviceSortingLine()
 
         /// <summary>
         /// Get whole DX button assignment line to write a key file.
+        /// DXnumber: total DXnumber per device BMS can handle.
         /// </summary>
-        public string GetKeyLineDX(int joynum, int numOfDevices, int DXnumber)
+        public string GetKeyLineDX(int joynum, int numOfDevices, int DXnumber) 
         {
             string assign = "";
             assign += "\n#======== " + GetProductName() + " ========\n";