diff --git a/MANIFEST.json b/MANIFEST.json
index 9d06e2f..022e214 100644
--- a/MANIFEST.json
+++ b/MANIFEST.json
@@ -560,7 +560,7 @@
     },
     {
       "description": "The ThreatMatch Sectors, Incident types, Malware types and Alert types are applicable for any ThreatMatch instances and should be used for all CIISI and TIBER Projects.",
-      "name": "ThreatMatch",
+      "name": "threatmatch",
       "version": 1
     },
     {
diff --git a/threatmatch/machinetag.json b/threatmatch/machinetag.json
index 6f1c54d..8e78ed1 100644
--- a/threatmatch/machinetag.json
+++ b/threatmatch/machinetag.json
@@ -1,5 +1,5 @@
 {
-  "namespace": "ThreatMatch",
+  "namespace": "threatmatch",
   "expanded": "ThreatMatch categories for sharing into ThreatMatch and MISP",
   "version": 1,
   "description": "The ThreatMatch Sectors, Incident types, Malware types and Alert types are applicable for any ThreatMatch instances and should be used for all CIISI and TIBER Projects.",