diff --git a/osint/machinetag.json b/osint/machinetag.json
index ee2f869..d3ae3af 100644
--- a/osint/machinetag.json
+++ b/osint/machinetag.json
@@ -25,6 +25,10 @@
         {
           "expanded": "Mailing-list",
           "value": "mailing-list"
+        },
+        {
+          "expanded": "Expansion",
+          "value": "expansion"
         }
       ],
       "predicate": "source-type"