diff --git a/XI.h b/XI.h
index b3ed00a..9e79120 100644
--- a/XI.h
+++ b/XI.h
@@ -276,7 +276,6 @@ SOFTWARE.
 #define _noExtensionEvent	 9
 
 #define _devicePresence		 0
-#define _pairingChanged          1
 
 #define _deviceEnter             0
 #define _deviceLeave             1
diff --git a/XIproto.h b/XIproto.h
index bb6205a..a84491e 100644
--- a/XIproto.h
+++ b/XIproto.h
@@ -2028,29 +2028,6 @@ typedef struct
 
 typedef deviceEnterNotify deviceLeaveNotify;
 
-/**********************************************************
- *
- * pairingChangedNotify.
- *
- */
-
-typedef struct
-    {
-    BYTE 	type;                   /* always GenericEvent */
-    BYTE        extension;              /* Xi extension offset */
-    CARD16 	sequenceNumber B16;
-    CARD32      length B32;
-    CARD16      evtype B16;
-    CARD32      time B32;
-    CARD8       pointer;
-    CARD8       keyboard;
-    CARD16      pad0;
-    CARD32      pad1;
-    CARD32      pad2;
-    CARD32      pad3;
-    CARD32      pad4;
-    }  pairingChangedNotify;
-
 
 /*********************************************************
  * RawDeviceEvent.