diff --git a/apps/files/index.php b/apps/files/index.php
index 4f103f975c..c3d74acc7e 100644
--- a/apps/files/index.php
+++ b/apps/files/index.php
@@ -51,6 +51,7 @@ OCP\Util::addscript('files', 'search');
 \OCP\Util::addScript('files', 'favoritesplugin');
 
 \OC_Util::addVendorScript('core', 'handlebars/handlebars');
+\OC_Util::addVendorScript('core', 'backbone/backbone');
 
 OCP\App::setActiveNavigationEntry('files_index');
 
diff --git a/lib/private/share/share.php b/lib/private/share/share.php
index 40fcc59f21..90d271b1d7 100644
--- a/lib/private/share/share.php
+++ b/lib/private/share/share.php
@@ -83,6 +83,7 @@ class Share extends Constants {
 				);
 				if(count(self::$backendTypes) === 1) {
 					\OC_Util::addScript('core', 'share');
+					\OC_Util::addVendorScript('core', 'backbone/backbone');
 					\OC_Util::addStyle('core', 'share');
 				}
 				return true;