diff --git a/src/core/config/Categories.json b/src/core/config/Categories.json
index a4388e1c..e627a1f0 100644
--- a/src/core/config/Categories.json
+++ b/src/core/config/Categories.json
@@ -161,7 +161,8 @@
             "Multiple Bombe",
             "Typex",
             "Lorenz",
-            "Colossus"
+            "Colossus",
+            "SIGABA"
         ]
     },
     {