diff --git a/dix/events.c b/dix/events.c
index 15aa16ed6..4a8e480c8 100644
--- a/dix/events.c
+++ b/dix/events.c
@@ -3312,7 +3312,7 @@ ProcessPointerEvent (xEvent *xE, DeviceIntPtr mouse, int count)
 		deactivateGrab = TRUE;
 	    break;
 	default: 
-	    FatalError("bogus pointer event from ddx");
+	    FatalError("bogus pointer event from ddx: %d", xE->u.u.type);
 	}
     }
     else if (!CheckMotion(xE))