diff --git a/samples/openapi3/client/petstore/dart2/petstore_client_lib/.gitignore b/samples/openapi3/client/petstore/dart2/petstore_client_lib/.gitignore
index 1be28ced094..0f74d293b98 100644
--- a/samples/openapi3/client/petstore/dart2/petstore_client_lib/.gitignore
+++ b/samples/openapi3/client/petstore/dart2/petstore_client_lib/.gitignore
@@ -3,7 +3,9 @@
 .dart_tool/
 .packages
 build/
-pubspec.lock  # Except for application packages
+
+# Except for application packages
+pubspec.lock
 
 doc/api/
 
diff --git a/samples/openapi3/client/petstore/dart2/petstore_client_lib_fake/.gitignore b/samples/openapi3/client/petstore/dart2/petstore_client_lib_fake/.gitignore
index 1be28ced094..0f74d293b98 100644
--- a/samples/openapi3/client/petstore/dart2/petstore_client_lib_fake/.gitignore
+++ b/samples/openapi3/client/petstore/dart2/petstore_client_lib_fake/.gitignore
@@ -3,7 +3,9 @@
 .dart_tool/
 .packages
 build/
-pubspec.lock  # Except for application packages
+
+# Except for application packages
+pubspec.lock
 
 doc/api/