diff --git a/bin/strip-frontmatter b/bin/strip-frontmatter
old mode 100644
new mode 100755
diff --git a/bin/strip-frontmatter.js b/bin/strip-frontmatter.js
old mode 100644
new mode 100755
diff --git a/readme.md b/readme.md
index a124be7..0dc07e1 100644
--- a/readme.md
+++ b/readme.md
@@ -107,8 +107,8 @@ const options: MarkdownOptions = {
 
 ```bash
 ./bin/markdown2html \
-  --katex-macro '\foobar' '\text{foo}' '\text{bar}' \
-  --katex-macro '\bazqux' '\text{baz}' '\text{qux}'
+  --katex-macro '\foobar' '\text{foo} + \text{bar}' \
+  --katex-macro '\bazqux' '\text{baz} + \text{qux}'
 ```
 
 
diff --git a/src/frontmatter.ts b/src/frontmatter.ts
index 1e49651..7ef5d48 100644
--- a/src/frontmatter.ts
+++ b/src/frontmatter.ts
@@ -1,7 +1,7 @@
 
 import * as yaml from 'yaml';
 
-export function process_frontmatter(document: string) {
+export function process_frontmatter(document: string, parse = true) {
 	if (! document.startsWith('---\n')) {
 		return {
 			frontmatter: null,
@@ -12,7 +12,7 @@ export function process_frontmatter(document: string) {
 	const endIndex = document.slice(3).indexOf('\n---\n') + 3;
 	const frontmatterYaml = document.slice(3, endIndex);
 	const markdown = document.slice(endIndex + 4);
-	const frontmatter = yaml.parse(frontmatterYaml);
+	const frontmatter = parse ? frontmatterYaml : yaml.parse(frontmatterYaml);
 
 	return { frontmatter, markdown };
 }