diff --git a/language/nl_NL/admin.lang.php b/language/nl_NL/admin.lang.php
index 82200fcbd..84aefd55f 100644
--- a/language/nl_NL/admin.lang.php
+++ b/language/nl_NL/admin.lang.php
@@ -730,9 +730,6 @@ $lang['This is a major update, with <a href="%s">new exciting features</a>.'] =
 $lang['Some themes and plugins may be not available yet.'] = 'Sommige thema\'s en plugins zijn mogelijk nog niet beschikbaar.';
 $lang['You can update to Piwigo %s directly, without upgrading to Piwigo %s (recommended).'] = 'Je kunt direct naar Piwigo %s updaten, zonder eerst up te daten naar Piwigo %s (aanbevolen).';
 $lang['Save Template Directory'] = 'Sla sjabloon-direcotry op';
-$lang['Dump Database'] = 'Dump Database';
-$lang['Include history data (Warning: server memory limit may be exceeded)'] = 'Bevat geschiedenis-data (Pas op: de geheugen-limiet van de server kan overschreden worden).';
-$lang['Unable to dump database.'] = 'Kan de database niet dumpen.';
 $lang['Some upgrades are available for extensions.'] = 'Er zijn enkele plugin-updates beschikbaar.';
 $lang['Ignore All'] = 'Negeer alles';
 $lang['Crop'] = 'Inkorten';
@@ -1012,3 +1009,36 @@ $lang['Welcome!'] = 'Welkom!';
 $lang['With no checksum'] = 'Zonder checksum';
 $lang['checksums to add'] = 'checksums toe te voegen';
 $lang['or'] = 'of';
+$lang['Merge'] = 'Voeg samen';
+$lang['Delete them'] = 'Verwijder ze';
+$lang['Delete album'] = 'Verwijder album';
+$lang['The other tags will be removed'] = 'Andere tags zullen verwijderd worden';
+$lang['Tags \{%s\} succesfully deleted'] = 'Tags \"%s\" succesvol verwijderd';
+$lang['Tag "%s1" renamed in "%s2"'] = 'Tag \"%s1\" hernoemt in \"%s2\"';
+$lang['Tag "%s" succesfully deleted'] = 'Tag \"%s\" succesvol verwijderd';
+$lang['Tag Manager'] = 'Tag manager';
+$lang['Tag "%s" created'] = 'Tag "%s" aangemaakt';
+$lang['Yes, I am sure'] = 'Ja, ik ben zeker';
+$lang['Yes, delete'] = 'Ja, verwijder';
+$lang['no photo'] = 'geen foto';
+$lang['Select'] = 'Selecteer';
+$lang['Search albums'] = 'Zoek albums';
+$lang[' (copy)'] = ' (kopie)';
+$lang[' (copy %s)'] = ' (kopie %s)';
+$lang['%d photos'] = '%d foto\'s';
+$lang['%s GB used'] = '%s GB gebruikt';
+$lang['%s MB used'] = '%s MB gebruikt';
+$lang['%s other tags available..'] = '%s andere tags beschikbaar..';
+$lang['<b>%d</b> tag found'] = '<b>%d</b> tag gevonden';
+$lang['<b>%d</b> tag selected'] = '<b>%d</b> tag geselecteerd';
+$lang['<b>%d</b> tags found'] = '<b>%d</b> tags gevonden';
+$lang['Are you sure you want to delete all sizes?'] = 'Weet u zeker dat u alle groottes wil verwijderen?';
+$lang['Are you sure you want to delete the language "%s"?'] = 'Weet u zeker dat u de taal "%s" wil verwijderen?';
+$lang['Are you sure you want to delete the plugin "%s"?'] = 'Weet u zeker dat u de plug-in "%s" wil verwijderen?';
+$lang['Are you sure you want to delete the theme "%s"?'] = 'Weet u zeker dat u thema "%s" wil verwijderen?';
+$lang['Are you sure you want to delete the user "%s"?'] = 'Weet u zeker dat u de gebruiker "%s" wil verwijderen?';
+$lang['Are you sure you want to delete this site?'] = 'Weet u zeker dat u deze site wil verwijderen?';
+$lang['Are you sure you want to delete this theme?'] = 'Weet u zeker dat u dit thema wil verwijderen?';
+$lang['Are you sure you want to delete this?'] = 'Weet u zeker dat u dit wil verwijderen?';
+$lang['Are you sure you want to install the plugin "%s"?'] = 'Weet u zeker dat u de plug-in "%s" wil installeren?';
+$lang['Are you sure you want to lock the gallery?'] = 'Weet u zeker dat u de galerij wil sluiten?';
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