diff --git a/stages/org.osbuild.cloud-init b/stages/org.osbuild.cloud-init
index 6dd585c4..ca1aff4f 100755
--- a/stages/org.osbuild.cloud-init
+++ b/stages/org.osbuild.cloud-init
@@ -152,7 +152,7 @@ def main(tree, options):
     config_files_dir = f"{tree}/etc/cloud/cloud.cfg.d"
 
     with open(f"{config_files_dir}/{filename}", "w") as f:
-        yaml.dump(config, f)
+        yaml.dump(config, f, default_flow_style=False)
 
     return 0