diff --git a/composer.json b/composer.json
index 1a67fd7..0cef69d 100644
--- a/composer.json
+++ b/composer.json
@@ -1,30 +1,34 @@
 {
 	"name": "kolab/irony",
 	"description": "iRony - The Kolab WebDAV/CalDAV/CardDAV Server",
 	"license": "AGPL-3.0",
 	"version": "0.2.3",
 	"repositories": [
 		{
 			"type": "vcs",
 			"url": "git://git.kolab.org/git/pear/Net_LDAP3"
 		},
 		{
 			"type": "pear",
 			"url": "http://pear.php.net/"
+		},
+		{
+			"type": "vcs",
+			"url": "https://github.com/thomascube/sabre-vobject.git"
 		}
 	],
 	"autoload": {
 		"psr-0": { "": "lib/" },
 		"classmap": [ "lib/FileAPI", "lib/plugins", "lib/Roundcube" ]
 	},
 	"require": {
 		"php": ">=5.3.3",
 		"sabre/dav" : "1.8.*",
 		"pear-pear/PEAR": ">=1.9",
 		"pear-pear/Mail_Mime": ">=1.8.1",
 		"pear-pear/Mail_mimeDecode": ">=1.5.5",
 		"pear-pear/Net_IDNA2": ">=0.1.1",
 		"pear-pear/HTTP_Request2": ">=2.1.1"
 	},
 	"minimum-stability": "dev"
 }
\ No newline at end of file