diff --git a/apps/sharebymail/lib/ShareByMailProvider.php b/apps/sharebymail/lib/ShareByMailProvider.php
index 46e381d3319a8ad0f42e9b5fd401d8fff01e655e..a332bd13d880492f83fa42a1826a08a845c8023b 100644
--- a/apps/sharebymail/lib/ShareByMailProvider.php
+++ b/apps/sharebymail/lib/ShareByMailProvider.php
@@ -22,6 +22,7 @@
 namespace OCA\ShareByMail;
 
 use OC\HintException;
+use OC\Share20\Exception\InvalidShare;
 use OCP\Files\Folder;
 use OCP\Files\IRootFolder;
 use OCP\Files\Node;