diff --git a/commands/codegen/tokenizer-states.js b/commands/codegen/tokenizer-states.js
index e4f0bc4..9af4b6f 100644
--- a/commands/codegen/tokenizer-states.js
+++ b/commands/codegen/tokenizer-states.js
@@ -9,6 +9,10 @@ export default function buildTokenizerStates(syntax) {
       return g[1].toUpperCase();
     });
     states.push(state);
+    // Not in the spec: used to detect closing pre/textarea tags.
+    if (state === 'tagName') {
+      states.push('endTagName');
+    }
   }
   return `export type TokenizerState =
 ${states.map(s => `  | '${s}'`).join('\n')};
diff --git a/src/generated/html5-named-char-refs.ts b/src/generated/html5-named-char-refs.ts
index 5ff4c0e..3d6de72 100644
--- a/src/generated/html5-named-char-refs.ts
+++ b/src/generated/html5-named-char-refs.ts
@@ -1,5 +1,5 @@
 /**
- * generated from https://raw.githubusercontent.com/w3c/html/26b5126f96f736f796b9e29718138919dd513744/entities.json
+ * generated from https://raw.githubusercontent.com/w3c/html/2ef7a579bcfd2693b98df35f20e51dff60e3fbef/entities.json
  * do not edit
  */
 export default {
diff --git a/src/generated/tokenizer-states.ts b/src/generated/tokenizer-states.ts
index f3f86dc..ca5c961 100644
--- a/src/generated/tokenizer-states.ts
+++ b/src/generated/tokenizer-states.ts
@@ -1,5 +1,5 @@
 /**
- * generated from https://raw.githubusercontent.com/w3c/html/26b5126f96f736f796b9e29718138919dd513744/sections/syntax.include
+ * generated from https://raw.githubusercontent.com/w3c/html/2ef7a579bcfd2693b98df35f20e51dff60e3fbef/sections/syntax.include
  * do not edit
  */
 export type TokenizerState =
@@ -23,7 +23,7 @@ export type TokenizerState =
   | 'scriptDataEndTagOpen'
   | 'scriptDataEndTagName'
   | 'scriptDataEscapeStart'
-  | 'scriptDataEscapseStartDash'
+  | 'scriptDataEscapeStartDash'
   | 'scriptDataEscaped'
   | 'scriptDataEscapedDash'
   | 'scriptDataEscapedDashDash'