diff --git a/linux/xmodmap/neo_de.xmodmap b/linux/xmodmap/neo_de.xmodmap
index d93aa534..b037d801 100644
--- a/linux/xmodmap/neo_de.xmodmap
+++ b/linux/xmodmap/neo_de.xmodmap
@@ -78,7 +78,7 @@ keycode 94 =  ISO_Level3_Shift  ISO_Level3_Shift  ISO_Group_Shift   ISO_Group_Sh
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 ! Tab as Multi_key (Compose)
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
-keycode 23 = Tab ISO_Left_Tab Multi_key
+keycode 23 = Tab ISO_Left_Tab Multi_key ISO_Level3_Lock
 
 
 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!