diff --git a/packages/docs/src/docs/advanced-config-options.md b/packages/docs/src/docs/advanced-config-options.md
index 4665c35ca..460b79395 100644
--- a/packages/docs/src/docs/advanced-config-options.md
+++ b/packages/docs/src/docs/advanced-config-options.md
@@ -198,7 +198,7 @@ Other engine specific configuration options can be added and will be passed to t
   "engines": {
     "handlebars": {
       "package": "@pattern-lab/engine-handlebars",
-      "extensions": [
+      "fileExtensions": [
         "handlebars",
         "hbs"
       ],