diff --git a/Arrow.Core/Json/TokenDefinitions.json b/Arrow.Core/Json/TokenDefinitions.json
index fc9ba5d..540681e 100644
--- a/Arrow.Core/Json/TokenDefinitions.json
+++ b/Arrow.Core/Json/TokenDefinitions.json
@@ -183,6 +183,14 @@
     },
     "Skip": false
   },
+  {
+    "Name": "ClassDeclaration",
+    "Expression": {
+      "Pattern": "\\b(class)\\b",
+      "Options": 0
+    },
+    "Skip": false
+  },
   {
     "Name": "Var",
     "Expression": {
@@ -255,6 +263,14 @@
     },
     "Skip": false
   },
+  {
+    "Name": "LowerThan",
+    "Expression": {
+      "Pattern": "[<]",
+      "Options": 0
+    },
+    "Skip": false
+  },
   {
     "Name": "BracketOpen",
     "Expression": {