diff --git a/fusesoc/utils.py b/fusesoc/utils.py
index 9a2c7acb..4a269310 100644
--- a/fusesoc/utils.py
+++ b/fusesoc/utils.py
@@ -151,7 +151,7 @@ def _formatwarning(message, category, filename, lineno, line=None):
 def yaml_fwrite(filepath, content, preamble=""):
     with open(filepath, "w") as f:
         f.write(preamble)
-        f.write(yaml.dump(content, Dumper=YamlDumper))
+        f.write(yaml.dump(content, Dumper=YamlDumper, sort_keys=False))
 
 
 def yaml_fread(filepath, resolve_env_vars=False):