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-rw-r--r--apps/dav/lib/carddav/carddavbackend.php2
1 files changed, 1 insertions, 1 deletions
diff --git a/apps/dav/lib/carddav/carddavbackend.php b/apps/dav/lib/carddav/carddavbackend.php
index 687ef7f3a87..bfb6ea82ad7 100644
--- a/apps/dav/lib/carddav/carddavbackend.php
+++ b/apps/dav/lib/carddav/carddavbackend.php
@@ -78,7 +78,7 @@ class CardDavBackend implements BackendInterface, SyncSupport {
*/
public function __construct(IDBConnection $db,
Principal $principalBackend,
- $dispatcher ) {
+ EventDispatcherInterface $dispatcher = null) {
$this->db = $db;
$this->principalBackend = $principalBackend;
$this->dispatcher = $dispatcher;