diff --git a/models/ShipyardShip.json b/models/ShipyardShip.json
index b3c0870..2f0a245 100644
--- a/models/ShipyardShip.json
+++ b/models/ShipyardShip.json
@@ -59,7 +59,6 @@
   },
   "required": [
     "type",
-    "symbol",
     "name",
     "description",
     "supply",
@@ -71,4 +70,4 @@
     "mounts",
     "crew"
   ]
-}
\ No newline at end of file
+}