1 files changed, 4 insertions, 3 deletions
diff --git a/lib/private/Comments/Comment.php b/lib/private/Comments/Comment.php
index c9862c64ca6..ef7538d140d 100644
--- a/lib/private/Comments/Comment.php
+++ b/lib/private/Comments/Comment.php
@@ -22,6 +22,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>
  *
  */
+
 namespace OC\Comments;
 
 use OCP\Comments\IComment;
@@ -299,12 +300,12 @@ class Comment implements IComment {
 	public function setActor($actorType, $actorId) {
 		if(
 		       !is_string($actorType) || !trim($actorType)
-		    || !is_string($actorId)   || !trim($actorId)
+		    || !is_string($actorId)   || $actorId === ''
 		) {
 			throw new \InvalidArgumentException('String expected.');
 		}
 		$this->data['actorType'] = trim($actorType);
-		$this->data['actorId']   = trim($actorId);
+		$this->data['actorId']   = $actorId;
 		return $this;
 	}
 
@@ -385,7 +386,7 @@ class Comment implements IComment {
 	public function setObject($objectType, $objectId) {
 		if(
 		       !is_string($objectType) || !trim($objectType)
-		    || !is_string($objectId)   || !trim($objectId)
+		    || !is_string($objectId)   || trim($objectId) === ''
 		) {
 			throw new \InvalidArgumentException('String expected.');
 		}