diff --git a/.cspell.json b/.cspell.json
index 8fc5b569d4ae..82ebc2c41a41 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -32,6 +32,7 @@
     "website/_dogfooding/_pages tests/diagrams.mdx",
     "*.xyz",
     "*.docx",
+    "*.xsl",
     "*.xslt",
     "*.gitignore",
     "versioned_docs",