diff --git a/src/Model/Conversation.php b/src/Model/Conversation.php
index 6bf31db6e6..d6e222a81b 100644
--- a/src/Model/Conversation.php
+++ b/src/Model/Conversation.php
@@ -21,6 +21,7 @@ class Conversation
 	const PARCEL_SALMON             = 3;
 	const PARCEL_FEED               = 4; // Deprecated
 	const PARCEL_SPLIT_CONVERSATION = 6;
+	const PARCEL_TWITTER            = 7;
 
 	/**
 	 * @brief Store the conversation data