diff --git a/Makefile b/Makefile
index f5cdefd9..d6ce8b60 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-VERSION=0.15.1
+VERSION=0.15.2
 
 .PHONY: dist
 dist: owncloud-collabora-online.spec info.xml
diff --git a/controller/documentcontroller.php b/controller/documentcontroller.php
index ff8e3b91..d0f4d37a 100644
--- a/controller/documentcontroller.php
+++ b/controller/documentcontroller.php
@@ -256,7 +256,8 @@ class DocumentController extends Controller {
 			$response =  array(
 				'status' => 'success',
 				'fileid' => $info['fileid'],
-				'urlsrc' => $this->getWopiSrcUrl($discovery_parsed, $mimetype, 'edit')
+				'urlsrc' => $this->getWopiSrcUrl($discovery_parsed, $mimetype, 'edit'),
+				'lolang' => $this->settings->getUserValue($this->uid, 'core', 'lang', 'en')
 			);
 		} else {
 			$response =  array(
@@ -471,6 +472,7 @@ class DocumentController extends Controller {
 			$documents[$key]['icon'] = preg_replace('/\.png$/', '.svg', \OCP\Template::mimetype_icon($document['mimetype']));
 			$documents[$key]['hasPreview'] = \OC::$server->getPreviewManager()->isMimeSupported($document['mimetype']);
 			$documents[$key]['urlsrc'] = $this->getWopiSrcUrl($discovery_parsed, $document['mimetype'], 'edit');
+			$documents[$key]['lolang'] = strtolower(str_replace('_', '-', $this->settings->getUserValue($this->uid, 'core', 'lang', 'en')));
 			$fileIds[] = $document['fileid'];
 		}
 
diff --git a/js/documents.js b/js/documents.js
index 28157242..cb524131 100644
--- a/js/documents.js
+++ b/js/documents.js
@@ -32,6 +32,7 @@ $.widget('oc.documentGrid', {
 			.attr('title', document.path)
 			.attr('original-title', document.path)
 			.attr('urlsrc', document.urlsrc)
+			.attr('lolang', document.lolang)
 			.find('label').text(document.name)
 		;
 
@@ -234,6 +235,7 @@ var documentsMain = {
 					var urlsrc = $('li[data-id='+ documentsMain.fileId +']>a').attr('urlsrc') +
 						"WOPISrc=" + wopisrc +
 						"&title=" + encodeURIComponent(title) +
+						"&lang=" + $('li[data-id='+ documentsMain.fileId +']>a').attr('lolang') +
 						"&closebutton=1";
 
 					// access_token - must be passed via a form post
@@ -466,6 +468,7 @@ var documentsMain = {
 				if (response && response.fileid){
 					docElem.attr('data-id', response.fileid);
 					docElem.find('a').attr('urlsrc', response.urlsrc);
+					docElem.find('a').attr('lolang', response.lolang);
 					documentsMain.prepareSession();
 					documentsMain.joinSession(response.fileid);
 				} else {
diff --git a/templates/admin.php b/templates/admin.php
index ee99f77c..869bd728 100644
--- a/templates/admin.php
+++ b/templates/admin.php
@@ -4,7 +4,7 @@ script('richdocuments', 'admin');
 <div class="section" id="richdocuments">
 	<h2><?php p($l->t('Collabora Online')) ?></h2>
 	<label for="wopi_url"><?php p($l->t('Collabora Online server')) ?></label>
-	<input type="text" name="wopi_url" id="wopi_url" value="<?php p($_['wopi_url'])?>" style="width:250px;">
+	<input type="text" name="wopi_url" id="wopi_url" value="<?php p($_['wopi_url'])?>" style="width:300px;">
 	<br /><em><?php p($l->t('URL (and port) of the Collabora Online server that provides the editing functionality as a WOPI client.')) ?></em>
 	<br /><button type="button" id="docs_apply"><?php p($l->t('Apply')) ?></button>
 	<span id="documents-admin-msg" class="msg"></span>