diff --git a/schemas/scanorganic-README.md b/schemas/scanorganic-README.md
index f9c2877..64093ff 100644
--- a/schemas/scanorganic-README.md
+++ b/schemas/scanorganic-README.md
@@ -54,13 +54,6 @@ CarrierJump as appropriate.
 **You MUST apply a location cross-check, as per
 [Other data augmentations](../docs/Developers.md#other-data-augmentations).**
 
-#### StarPos
-You MUST add a `StarPos` array containing the system co-ordinates from the
-last `FSDJump`, `CarrierJump`, or `Location` event.
-
-**You MUST apply a location cross-check, as per
-[Other data augmentations](../docs/Developers.md#other-data-augmentations).**
-
 #### BodyID and BodyName
 BodyID is already present in the form of the 'Body' key. This should be
 renamed to BodyID to mirror many other events.
diff --git a/schemas/scanorganic-v1.0.json b/schemas/scanorganic-v1.0.json
index 5183aae..2b34bbb 100644
--- a/schemas/scanorganic-v1.0.json
+++ b/schemas/scanorganic-v1.0.json
@@ -33,7 +33,7 @@
             "type"                  : "object",
             "description"           : "Contains all properties from the listed events in the client's journal minus the Localised strings and the properties marked below as 'disallowed'",
             "additionalProperties"  : false,
-            "required"              : [ "timestamp", "event", "ScanType", "Genus", "Species", "SystemAddress", "BodyID"],
+            "required"              : [ "timestamp", "event", "StarSystem", "ScanType", "Genus", "Species", "SystemAddress", "BodyID"],
             "properties"            : {
                 "timestamp": {
                     "type"          : "string",
@@ -50,11 +50,9 @@
                     "type"          : "boolean",
                     "description"   : "Boolean value copied from the Journal LoadGame event, when it is present there."
                 },
-                "StarPos": {
-                    "type"          : "array",
-                    "items"         : { "type": "number" },
-                    "minItems"      : 3,
-                    "maxItems"      : 3,
+                "StarSystem": {
+                    "type"          : "string",
+                    "minLength"     : 1,
                     "description"   : "Must be added by the sender"
                 },
                 "ScanType": {