diff --git a/debian/scripts/koha-dump b/debian/scripts/koha-dump
index f3a6b5aed7..f8d2ad1fa1 100755
--- a/debian/scripts/koha-dump
+++ b/debian/scripts/koha-dump
@@ -79,13 +79,13 @@ dump_instance()
     then
         schemadump="$backupdir/$name-schema-$date.sql"
         [ "$quiet" = "no" ] && echo "* schema to $schemadump"
-        mysqldump $dbflag -d --host="$mysqlhost" \
+        mysqldump $dbflag -d --host="$mysqlhost" --single-transaction \
             --user="$mysqluser" --password="$mysqlpass" "$mysqldb" | sed --expression='s/ AUTO_INCREMENT=[0-9]\+//' > "$schemadump"
         chown "root:$name-koha" "$schemadump"
         chmod g+r "$schemadump"
     else
         [ "$quiet" = "no" ] && echo "* DB to $dbdump"
-        mysqldump $dbflag --host="$mysqlhost" \
+        mysqldump $dbflag --host="$mysqlhost" --single-transaction \
             --user="$mysqluser" --password="$mysqlpass" "$mysqldb" |
             gzip > "$dbdump"
         chown "root:$name-koha" "$dbdump"