diff --git a/file/lib/page/ChatMessagePage.class.php b/file/lib/page/ChatMessagePage.class.php
index 873e95a..106bd09 100644
--- a/file/lib/page/ChatMessagePage.class.php
+++ b/file/lib/page/ChatMessagePage.class.php
@@ -67,8 +67,11 @@ public function readUsers() {
 				AND 	fieldValue = ".intval($this->roomID);
 		$stmt = WCF::getDB()->prepareStatement($sql);
 		$stmt->execute();
+		$userIDs = array();
 		while ($row = $stmt->fetchArray()) $userIDs[] = $row['userID'];
 		
+		if (!count($userIDs)) return;
+		
 		$sql = "SELECT
 				*
 			FROM