diff --git a/include/Mw/StringDefs.h b/include/Mw/StringDefs.h
index 0af6303..42f9a4d 100644
--- a/include/Mw/StringDefs.h
+++ b/include/Mw/StringDefs.h
@@ -29,6 +29,7 @@
 #define MwNhideInput "IhideInput"
 #define MwNsingleClickSelectable "IsingleClickSelectable"
 #define MwNflat "Iflat"
+#define MwNshowArrows "IshowArrows"
 
 #define MwNtitle "Stitle"
 #define MwNtext "Stext"