diff --git a/files/en-us/web/http/headers/access-control-allow-credentials/index.md b/files/en-us/web/http/headers/access-control-allow-credentials/index.md
index eaa766b6e081551..61962013e44fb42 100644
--- a/files/en-us/web/http/headers/access-control-allow-credentials/index.md
+++ b/files/en-us/web/http/headers/access-control-allow-credentials/index.md
@@ -43,7 +43,7 @@ Access-Control-Allow-Credentials: true
 
 ## Directives
 
-- true
+- `true`
   - : The only valid value for this header is `true` (case-sensitive). If you
     don't need credentials, omit this header entirely (rather than setting its value to
     `false`).