diff --git a/addons/mysql/reloader/update-parameter.sh b/addons/mysql/reloader/update-parameter.sh
index 9acf85192..c1fa55591 100644
--- a/addons/mysql/reloader/update-parameter.sh
+++ b/addons/mysql/reloader/update-parameter.sh
@@ -1,16 +1,15 @@
-#!/bin/sh
-set -e
+#!/bin/bash
 
 function mysql_exec() {
     local query="$1"
-    mysql --user=${MYSQL_ADMIN_USER} --password=${MYSQL_ADMIN_PASSWORD} --host=127.0.0.1 -P 3306 -NBe "${query}"
+    mysql --user="${MYSQL_ADMIN_USER}" --password="${MYSQL_ADMIN_PASSWORD}" --host=127.0.0.1 -P 3306 -NBe "${query}"
 }
 
 paramName="${1:?missing param name}"
 paramValue="${2:?missing value}"
 
 if echo "${paramName}" | grep -q "^loose_"; then
-    paramName=$(echo "${paramName}" | sed 's/^loose_//')
+    paramName=${paramName//"loose_"/}
 fi
 paramName=$(echo "${paramName}" | tr '-' '_')
 
@@ -18,7 +17,7 @@ var_int=-1
 if [[ "${paramValue}" =~ ^[0-9]+$ ]]; then
     var_int="${paramValue}"
 fi
-if [ ${var_int} -lt 0 ]; then
+if [ "${var_int}" -lt 0 ]; then
     if [[ "${paramValue}" =~ ^([0-9]+)(K|KB|k|kb)$ ]]; then
         number="${BASH_REMATCH[1]}"
         var_int=$((number * 1024))
@@ -31,9 +30,11 @@ if [ ${var_int} -lt 0 ]; then
     fi
 fi
 
-if [ ${var_int} -ge 0 ]; then
-    mysql_exec "SET GLOBAL ${paramName} = ${var_int};"
+if [ "${var_int}" -ge 0 ]; then
+    ret=$(mysql_exec "SET GLOBAL ${paramName} = ${var_int};" 2>&1)
 else
-    mysql_exec "SET GLOBAL ${paramName} = '${paramValue}';"
+    ret=$(mysql_exec "SET GLOBAL ${paramName} = '${paramValue}';" 2>&1)
 fi
 
+echo "Set parameter ${paramName} to value ${paramValue}, result: ${ret}"
+