diff --git a/malware_classification/machinetag.json b/malware_classification/machinetag.json
index 5853130..f4bd19e 100644
--- a/malware_classification/machinetag.json
+++ b/malware_classification/machinetag.json
@@ -60,6 +60,10 @@
           "value": "Spyware",
           "expanded": "Spyware"
         },
+        {
+          "value": "Zombieware",
+          "expanded": "Zombieware"
+        },
         {
           "value": "Botnet",
           "expanded": "Botnet"