diff --git a/jobhelper.sh b/jobhelper.sh
index d2c247c4fecff8aa2580451c5aeac766ecdbee89..5a5f2ebbd23dc7c3e0a4fe782f70f4f364d27557 100755
--- a/jobhelper.sh
+++ b/jobhelper.sh
@@ -15,6 +15,7 @@
 # 2022-10-07  ah     v1.4  unescape regex with space to prevent "grep: warning: stray \ before white space"
 # 2023-03-17  ah     v1.5  ignore required user on MS windows; source jobs/env if it exists; use varaiable FQDN
 # 2023-04-12  ah     v1.6  add desktop notification
+# 2023-10-06         v1.7  source jobs/env_defaults
 # ================================================================================
 
 
@@ -43,6 +44,7 @@ STORAGEFILE="${DIR_JOBS}/transfer.job"
 function j_init(){
 
   j_banner
+  . "${DIR_JOBS}/env_defaults"
   if [ -r "${DIR_JOBS}/env" ];
   then
     echo "INFO: loading custom environment ${DIR_JOBS}/env"
diff --git a/jobs/env_defaults b/jobs/env_defaults
new file mode 100644
index 0000000000000000000000000000000000000000..322878bb20053cc178714a18d26ae496862104c5
--- /dev/null
+++ b/jobs/env_defaults
@@ -0,0 +1,21 @@
+#!/bin/bash
+# ----------------------------------------------------------------------
+#
+# DEFAULTS !!! Do not edit this file !!! 
+# Overide customizations in file "env" (maybe copy env.dist to env first)
+#
+# ----------------------------------------------------------------------
+
+# ----------------------------------------------------------------------
+# Localdump
+# ----------------------------------------------------------------------
+
+# mysql
+LD_MYSQL_DUMP_PARAMS="--opt \
+            --default-character-set=utf8 \
+            --flush-logs \
+            --single-transaction \
+            --no-autocommit \
+            "
+
+# ----------------------------------------------------------------------
\ No newline at end of file
diff --git a/plugins/localdump/mysql.sh b/plugins/localdump/mysql.sh
index 2fad72e7759339b4f04ad87d99c63139a6887b18..8b1c866a9449942106ac5cc58caedd373b230d65 100755
--- a/plugins/localdump/mysql.sh
+++ b/plugins/localdump/mysql.sh
@@ -15,6 +15,7 @@
 # 2022-03-17         v2.2  WIP: add lines with prefix __DB__
 # 2022-03-21         v2.3  Check if the created dump contains "insert" 
 # 2022-03-24         v2.4  On empty dumps: detect if source db is empty too
+# 2023-10-06         v2.5  mysqldump params can be customized in jobs/env
 # ================================================================================
 
 if [ -z "$LOCALDUMP_LOADED" ]; then
@@ -78,6 +79,9 @@ function mysql.db.create(){
 
 # dump [database] --> [file] 
 # dump a single database into given file
+#
+# global LD_MYSQL_DUMP_PARAMS  string  parameters from file jobs/env_defaults
+#
 # param  string  name of database to dump
 # param  string  name of output file
 function mysql.db.dump(){
@@ -85,13 +89,7 @@ function mysql.db.dump(){
   local _dbname=$1
   local _dumpfile=$2
 
-  mysqldump --opt \
-            --default-character-set=utf8 \
-            --flush-logs \
-            --single-transaction \
-            --no-autocommit \
-            --result-file="$_dumpfile" \
-            "$_dbname" 2>&1
+  mysqldump $LD_MYSQL_DUMP_PARAMS --result-file="$_dumpfile" "$_dbname" 2>&1
   fetchrc >/dev/null
 
   if [ $myrc -eq 0 ]; then