diff --git a/include/input/InputWindow.h b/include/input/InputWindow.h
index c44db51..aa85e6d 100644
--- a/include/input/InputWindow.h
+++ b/include/input/InputWindow.h
@@ -107,6 +107,7 @@
         TYPE_MAGNIFICATION_OVERLAY = FIRST_SYSTEM_WINDOW+27,
         TYPE_ACCESSIBILITY_OVERLAY = FIRST_SYSTEM_WINDOW+32,
         TYPE_DOCK_DIVIDER = FIRST_SYSTEM_WINDOW+34,
+        TYPE_ACCESSIBILITY_MAGNIFICATION_OVERLAY = FIRST_SYSTEM_WINDOW+39,
         LAST_SYSTEM_WINDOW      = 2999,
     };