diff --git a/bin/pg-backup-to-s3 b/bin/pg-backup-to-s3
index 9c6463b0..704cab46 100755
--- a/bin/pg-backup-to-s3
+++ b/bin/pg-backup-to-s3
@@ -17,7 +17,7 @@ gzip $dump_file
 gpg --yes --passphrase=$PG_BACKUP_KEY --batch -c $dump_file.gz
 rm $dump_file.gz
 
-BACKUP_FILE_NAME="myskillbox-pg-backup-$(date '+%Y-%m-%d_%H.%M').gpg"
+BACKUP_FILE_NAME="myskillbox-pg-backup-$(date '+%Y-%m-%d').gpg"
 
 # temporarily set the access key, because we use a different one for the backup and
 # the default S3 bucket for Django