diff --git a/data/mods/Graphical_Overmap/go_overmap_terrain_agricultural.json b/data/mods/Graphical_Overmap/go_overmap_terrain_agricultural.json
index 7bdbae684bb0e..ce153e46ca578 100644
--- a/data/mods/Graphical_Overmap/go_overmap_terrain_agricultural.json
+++ b/data/mods/Graphical_Overmap/go_overmap_terrain_agricultural.json
@@ -835,7 +835,8 @@
   {
     "type": "overmap_terrain",
     "id": "2silos",
-    "copy-from": "farm_1"
+    "copy-from": "2silos",
+    "sym": "\u00F6"
   },
   {
     "type": "overmap_terrain",