diff --git a/samples/client/petstore/ruby/.openapi-generator-ignore b/samples/client/petstore/ruby/.openapi-generator-ignore
index 7484ee590a38..65ae62012bab 100644
--- a/samples/client/petstore/ruby/.openapi-generator-ignore
+++ b/samples/client/petstore/ruby/.openapi-generator-ignore
@@ -21,3 +21,4 @@
 #docs/*.md
 # Then explicitly reverse the ignore rule for a single file:
 #!docs/README.md
+