diff --git a/data/mods/Aftershock/maps/mapgen/port_augustmoon/port_augustmoon_main.json b/data/mods/Aftershock/maps/mapgen/port_augustmoon/port_augustmoon_main.json
index 0a10aa4f15e28..786312520b61f 100644
--- a/data/mods/Aftershock/maps/mapgen/port_augustmoon/port_augustmoon_main.json
+++ b/data/mods/Aftershock/maps/mapgen/port_augustmoon/port_augustmoon_main.json
@@ -32,7 +32,7 @@
         ".||||||__ ,, _    ,,  =.",
         ".|1111=ú______        |.",
         ".|1111=      ||::|::||||",
-        ".|1111= |  |Ñ|566|665||.",
+        ".|1111=ò|  |Ñ|566|665||.",
         "|||||||||]]|||666|666||.",
         "|qqq  ],    ,||||||||||.",
         "| ,,  ]      %||ÑÑÑ = ||",
@@ -76,6 +76,7 @@
         "=": "t_afs_augustmoon_diamond_glass",
         "w": "t_carpet_metal_red",
         "|": "t_afs_augustmoon_hull_wall",
+        "ò": "t_atm",
         "1": "t_underbrush",
         "2": "t_nanofab_body",
         "3": "t_nanofab",