diff --git a/tradedb.py b/tradedb.py
index 6f6a04c8..c6fb9cb2 100644
--- a/tradedb.py
+++ b/tradedb.py
@@ -778,7 +778,7 @@ def updateLocalSystem(
         db.execute("""
             UPDATE System
                SET name=?,
-                   x=?, y=?, z=?,
+                   pos_x=?, pos_y=?, pos_z=?,
                    added=(SELECT added_id FROM Added WHERE name = ?),
                    modified=DATETIME(?)
         """, [