diff --git a/packages/liquid-html-parser/src/grammar.ts b/packages/liquid-html-parser/src/grammar.ts
index 79675ad7..18167b8e 100644
--- a/packages/liquid-html-parser/src/grammar.ts
+++ b/packages/liquid-html-parser/src/grammar.ts
@@ -53,4 +53,5 @@ export const TAGS_WITHOUT_MARKUP = [
   'continue',
   'comment',
   'raw',
+  'doc',
 ];
diff --git a/packages/liquid-html-parser/src/stage-2-ast.spec.ts b/packages/liquid-html-parser/src/stage-2-ast.spec.ts
index d88a557e..84848ccb 100644
--- a/packages/liquid-html-parser/src/stage-2-ast.spec.ts
+++ b/packages/liquid-html-parser/src/stage-2-ast.spec.ts
@@ -1224,6 +1224,7 @@ describe('Unit: Stage 2 (AST)', () => {
       ast = toLiquidAST(`{% doc %}{% enddoc %}`);
       expectPath(ast, 'children.0.type').to.eql('LiquidRawTag');
       expectPath(ast, 'children.0.name').to.eql('doc');
+      expectPath(ast, 'children.0.markup').toEqual('');
       expectPath(ast, 'children.0.body.value').to.eql('');
       expectPath(ast, 'children.0.body.type').toEqual('RawMarkup');
       expectPath(ast, 'children.0.body.nodes').toEqual([]);