diff --git a/dev/n_obackup.sh b/dev/n_obackup.sh
index b8fad85..84209df 100755
--- a/dev/n_obackup.sh
+++ b/dev/n_obackup.sh
@@ -800,9 +800,9 @@ function BackupDatabase {
 
 	# Hack to prevent warning on table mysql.events, some mysql versions don't support --skip-events, prefer using --ignore-table
 	if [ "$database" == "mysql" ]; then
-		mysql_options='--skip-lock-tables --single-transaction --ignore-table=mysql.event'
+		mysql_options="$MYSQLDUMP_OPTIONS --ignore-table=mysql.event"
 	else
-		mysql_options='--skip-lock-tables --single-transaction'
+		mysql_options="$MYSQLDUMP_OPTIONS"
 	fi
 
 	if [ "$BACKUP_TYPE" == "local" ]; then
diff --git a/host_backup.conf.example b/host_backup.conf.example
index c966a42..ec586f5 100644
--- a/host_backup.conf.example
+++ b/host_backup.conf.example
@@ -2,7 +2,7 @@
 
 ###### obackup - Local or Remote, push or pull backup script for files & mysql databases
 ###### (C) 2013-2016 by Orsiris de Jong (www.netpower.fr)
-###### obackup v2.1x config file rev 2016083001
+###### obackup v2.1x config file rev 2016083101
 
 ###### GENERAL BACKUP OPTIONS
 
@@ -96,6 +96,10 @@ DATABASES_ALL_EXCLUDE_LIST="test;mysql"
 SOFT_MAX_EXEC_TIME_DB_TASK=3600
 HARD_MAX_EXEC_TIME_DB_TASK=7200
 
+## mysqldump options (ex: --extended-insert, --single-transaction, --quick...). See MySQL / MariaDB manual
+## default option: --opt
+MYSQLDUMP_OPTIONS="--opt --single-transaction"
+
 ## Preferred SQL dump compression. Compression methods can be xz, lzma, pigz or gzip (will fallback from xz to gzip depending if available)
 ## Generally, level 5 is a good compromise between cpu, memory hunger and compress ratio. Gzipped files are set to be rsyncable.
 COMPRESSION_LEVEL=3