diff --git a/aio/src/styles/0-base/_typography.scss b/aio/src/styles/0-base/_typography.scss
index 4f909fc9dc..1b0afc1f46 100755
--- a/aio/src/styles/0-base/_typography.scss
+++ b/aio/src/styles/0-base/_typography.scss
@@ -213,6 +213,7 @@ code {
 .folder-api,
 .folder-cli,
 .folder-docs,
+.folder-errors,
 .folder-guide,
 .folder-start,
 .folder-tutorial {