diff --git a/migration.sql b/migration.sql
index 4c87b1a..bff1516 100644
--- a/migration.sql
+++ b/migration.sql
@@ -86,7 +86,7 @@ CREATE TABLE IF NOT EXISTS "logbook_type" (
 CREATE TABLE IF NOT EXISTS "logbook" (
 	"id" integer NOT NULL PRIMARY KEY AUTOINCREMENT,
 	"boat_id" INTEGER NOT NULL REFERENCES boat(id),
-	"shipmaster" INTEGER NOT NULL REFERENCES user(id), -- null: club is owner
+	"shipmaster" INTEGER NOT NULL REFERENCES user(id), 
 	"shipmaster_only_steering" boolean not null,
 	"departure" datetime not null,
 	"arrival" datetime, -- None -> ship is on water
diff --git a/src/model/stat.rs b/src/model/stat.rs
index 994f91c..d60816a 100644
--- a/src/model/stat.rs
+++ b/src/model/stat.rs
@@ -13,7 +13,7 @@ impl Stat {
         //TODO: switch to query! macro again (once upgraded to sqlite 3.42 on server)
         sqlx::query(
             "
-SELECT u.name, SUM(sub.distance_in_km) AS rowed_km 
+SELECT u.name, CAST(SUM(sub.distance_in_km) AS INTEGER) AS rowed_km 
 FROM user u
 INNER JOIN (
     SELECT r.rower_id AS user_id, l.distance_in_km