diff --git a/mysql_backup.sh b/mysql_backup.sh
index 3ea7e6f..1aa3892 100755
--- a/mysql_backup.sh
+++ b/mysql_backup.sh
@@ -16,7 +16,7 @@ bases=$(mysql --defaults-file=${defaultfile} --batch -e 'show databases'  --skip
 for b in $bases ; do
         if [ "$b" == "information_schema" ] ; then continue ; fi
         if [ "$b" == "performance_schema" ] ; then continue ; fi
-        mysqldump --defaults-file=${defaultfile} --single-transaction --events  --databases    $b --opt > ${b}.sql
+        mysqldump --defaults-file=${defaultfile} --master-data=2 --single-transaction --events  --databases    $b --opt > ${b}.sql
         let "error=$error+$?"
         gzip --force ${b}.sql
 done