diff --git a/src/usb-pad/dx/dinput-config.cpp b/src/usb-pad/dx/dinput-config.cpp
index e609b32c..3f580582 100644
--- a/src/usb-pad/dx/dinput-config.cpp
+++ b/src/usb-pad/dx/dinput-config.cpp
@@ -95,7 +95,6 @@ DWORD LABELS[CID_COUNT] = {
 	IDC_LABEL28,
 	IDC_LABEL29,
 	IDC_LABEL30,
-	IDC_LABEL31,
 };
 
 struct DXDlgSettings
@@ -980,15 +979,14 @@ INT_PTR CALLBACK DxDialogProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam
 				case IDC_ASS20: { StartListen(CID_BUTTON20); break; }
 				case IDC_ASS21: { StartListen(CID_BUTTON21); break; }
 				case IDC_ASS22: { StartListen(CID_BUTTON22); break; }
-				case IDC_ASS23: { StartListen(CID_BUTTON23); break; } // g2
-				case IDC_ASS24: { StartListen(CID_BUTTON24); break; } // g#
-				case IDC_ASS25: { StartListen(CID_BUTTON25); break; } // a
-				case IDC_ASS26: { StartListen(CID_BUTTON26); break; } // a#
-				case IDC_ASS27: { StartListen(CID_BUTTON27); break; } // b
+				case IDC_ASS23: { StartListen(CID_BUTTON23); break; }
+				case IDC_ASS24: { StartListen(CID_BUTTON24); break; }
+				case IDC_ASS25: { StartListen(CID_BUTTON25); break; }
+				case IDC_ASS26: { StartListen(CID_BUTTON26); break; }
+				case IDC_ASS27: { StartListen(CID_BUTTON27); break; }
 				case IDC_ASS28: { StartListen(CID_BUTTON28); break; }
 				case IDC_ASS29: { StartListen(CID_BUTTON29); break; }
 				case IDC_ASS30: { StartListen(CID_BUTTON30); break; }
-				case IDC_ASS31: { StartListen(CID_BUTTON31); break; }
 				case IDC_DEL0: { DeleteControl(s->port, CID_STEERING); break; }
 				case IDC_DEL1: { DeleteControl(s->port, CID_STEERING_R); break; }
 				case IDC_DEL2: { DeleteControl(s->port, CID_THROTTLE); break; }
diff --git a/src/usb-pad/dx/dx.h b/src/usb-pad/dx/dx.h
index 425e58ae..ea2ba009 100644
--- a/src/usb-pad/dx/dx.h
+++ b/src/usb-pad/dx/dx.h
@@ -67,7 +67,6 @@ enum ControlID
 	CID_BUTTON28,
 	CID_BUTTON29,
 	CID_BUTTON30,
-	CID_BUTTON31,
 	CID_COUNT,
 };
 
diff --git a/src/usb-pad/dx/versionproxy.h b/src/usb-pad/dx/versionproxy.h
index f545f442..142c9050 100644
--- a/src/usb-pad/dx/versionproxy.h
+++ b/src/usb-pad/dx/versionproxy.h
@@ -192,8 +192,6 @@
 #define IDC_ASS29                       1157
 #define IDC_LABEL30                     1158
 #define IDC_ASS30                       1159
-#define IDC_LABEL31                     1160
-#define IDC_ASS31                       1161
 
 // Next default values for new objects
 //