diff --git a/htdocs/admin/tools/dolibarr_export.php b/htdocs/admin/tools/dolibarr_export.php
index f8d8e603762..e04bf67a702 100644
--- a/htdocs/admin/tools/dolibarr_export.php
+++ b/htdocs/admin/tools/dolibarr_export.php
@@ -303,7 +303,7 @@ if (in_array($type, array('mysql', 'mysqli'))) {
 	}
 	if ($execmethod == 1) {
 		// If we use the "exec" method for shell, we ask if we need to use the alternative low memory exec mode.
-		print '<input type="checkbox" name="lowmemorydump" value="yes" id="lowmemorydump"'.((GETPOSTISSET('lowmemorydump') ? GETPOST('lowmemorydump', 'alpha') : getDolGlobalString('MAIN_LOW_MEMORY_DUMP')) ? ' checked="checked"' : '').'" />';
+		print '<input type="checkbox" name="lowmemorydump" value="1" id="lowmemorydump"'.((GETPOSTISSET('lowmemorydump') ? GETPOST('lowmemorydump', 'alpha') : getDolGlobalString('MAIN_LOW_MEMORY_DUMP')) ? ' checked="checked"' : '').'" />';
 		print '<label for="lowmemorydump">';
 		print $form->textwithpicto($langs->trans('ExportUseLowMemoryMode'), $langs->trans('ExportUseLowMemoryModeHelp'));
 		print '</label>';
diff --git a/htdocs/admin/tools/export.php b/htdocs/admin/tools/export.php
index 41db5485ced..f0276835c66 100644
--- a/htdocs/admin/tools/export.php
+++ b/htdocs/admin/tools/export.php
@@ -121,7 +121,7 @@ $outputdir  = $conf->admin->dir_output.'/backup';
 $result = dol_mkdir($outputdir);
 
 
-$lowmemorydump = GETPOSTISSET("lowmemorydump") ? GETPOST("lowmemorydump") : getDolGlobalString('MAIN_LOW_MEMORY_DUMP');
+$lowmemorydump = (int) (GETPOSTISSET("lowmemorydump") ? GETPOSTINT("lowmemorydump") : getDolGlobalInt('MAIN_LOW_MEMORY_DUMP'));
 
 
 // MYSQL
@@ -156,7 +156,7 @@ if ($what == 'mysql') {
 	}
 
 	if (!$errormsg) {
-		$result = $utils->dumpDatabase(GETPOST('compression', 'alpha'), $what, 0, $file, 0, 0, (int) $lowmemorydump);
+		$result = $utils->dumpDatabase(GETPOST('compression', 'alpha'), $what, 0, $file, 0, 0, $lowmemorydump);
 
 		$errormsg = $utils->error;
 		$_SESSION["commandbackuplastdone"] = $utils->result['commandbackuplastdone'];
@@ -166,7 +166,7 @@ if ($what == 'mysql') {
 
 // MYSQL NO BIN
 if ($what == 'mysqlnobin') {
-	$utils->dumpDatabase(GETPOST('compression', 'alpha'), $what, 0, $file, 0, 0, (int) $lowmemorydump);
+	$utils->dumpDatabase(GETPOST('compression', 'alpha'), $what, 0, $file, 0, 0, $lowmemorydump);
 
 	$errormsg = $utils->error;
 	$_SESSION["commandbackuplastdone"] = $utils->result['commandbackuplastdone'];
@@ -196,7 +196,7 @@ if ($what == 'postgresql') {
 	}
 
 	if (!$errormsg) {
-		$utils->dumpDatabase(GETPOST('compression', 'alpha'), $what, 0, $file, 0, 0, (int) $lowmemorydump);
+		$utils->dumpDatabase(GETPOST('compression', 'alpha'), $what, 0, $file, 0, 0, $lowmemorydump);
 		$errormsg = $utils->error;
 		$_SESSION["commandbackuplastdone"] = $utils->result['commandbackuplastdone'];
 		$_SESSION["commandbackuptorun"] = $utils->result['commandbackuptorun'];
diff --git a/htdocs/core/class/utils.class.php b/htdocs/core/class/utils.class.php
index 5a77ea91dc3..48d5c0482d5 100644
--- a/htdocs/core/class/utils.class.php
+++ b/htdocs/core/class/utils.class.php
@@ -442,7 +442,7 @@ class Utils
 					$execmethod = 1;
 				}
 
-				dol_syslog("Utils::dumpDatabase execmethod=".$execmethod." command:".$fullcommandcrypted, LOG_INFO);
+				dol_syslog("Utils::dumpDatabase execmethod=".$execmethod.", lowmemorydump=".$lowmemorydump.", command=".$fullcommandcrypted, LOG_INFO);
 
 
 				/* If value has been forced with a php_admin_value, this has no effect. Example of value: '512M' */