diff --git a/docs/creating-your-site.md b/docs/creating-your-site.md
index 4a4971c48..d8f24664e 100644
--- a/docs/creating-your-site.md
+++ b/docs/creating-your-site.md
@@ -64,6 +64,8 @@ theme:
                 "https://squidfunk.github.io/mkdocs-material/schema.json": "mkdocs.yml"
               },
               "yaml.customTags": [ // (1)!
+                "!ENV scalar",
+                "!ENV sequence",
                 "tag:yaml.org,2002:python/name:materialx.emoji.to_svg",
                 "tag:yaml.org,2002:python/name:materialx.emoji.twemoji",
                 "tag:yaml.org,2002:python/name:pymdownx.superfences.fence_code_format"