diff --git a/cron-tasks/backup_database_medicine.sh b/cron-tasks/backup_database_medicine.sh
index 04a1946..9071367 100755
--- a/cron-tasks/backup_database_medicine.sh
+++ b/cron-tasks/backup_database_medicine.sh
@@ -4,7 +4,7 @@ set -e
 
 cd /root/medicine-backups/
 
-weekday=$(date +%u)
+weekday=$(date +%a)
 backup_filename="medicine_${weekday}.sql"
 archive_filename="medicine_${weekday}.tar.gz"
 docker exec -i medicine-stack-postgres pg_dump --no-owner -U postgres -F p medicine > "${backup_filename}" \
diff --git a/cron-tasks/backup_database_medicine_remd.sh b/cron-tasks/backup_database_medicine_remd.sh
index 6283386..801b6b7 100755
--- a/cron-tasks/backup_database_medicine_remd.sh
+++ b/cron-tasks/backup_database_medicine_remd.sh
@@ -4,7 +4,7 @@ set -e
 
 cd /root/medicine-backups/
 
-weekday=$(date +%u)
+weekday=$(date +%a)
 backup_filename="medicine_remd_${weekday}.sql"
 archive_filename="medicine_remd_${weekday}.tar.gz"
 docker exec -i medicine-stack-postgres pg_dump --no-owner -U postgres -F p medicine_remd > "${backup_filename}"