diff --git a/server.py b/server.py
index baeb45e..3199f6a 100644
--- a/server.py
+++ b/server.py
@@ -1106,6 +1106,14 @@ def create_checkin(body: CheckinCreate):
     conn.commit()
     checkin_id = cursor.lastrowid
 
+    # Auto-update asset's last known location
+    if body.latitude is not None and body.longitude is not None:
+        conn.execute(
+            "UPDATE assets SET latitude = ?, longitude = ? WHERE id = ?",
+            (body.latitude, body.longitude, body.asset_id),
+        )
+        conn.commit()
+
     # Auto-log visit
     row = conn.execute("SELECT created_at FROM checkins WHERE id = ?", (checkin_id,)).fetchone()
     _auto_log_visit(conn, body.user_id, body.asset_id, row["created_at"])