diff --git a/samples/documentation/asciidoc/.openapi-generator/FILES b/samples/documentation/asciidoc/.openapi-generator/FILES
new file mode 100644
index 00000000000..94a153d20eb
--- /dev/null
+++ b/samples/documentation/asciidoc/.openapi-generator/FILES
@@ -0,0 +1 @@
+index.adoc