diff --git a/src/wstool/config_yaml.py b/src/wstool/config_yaml.py
index 19f82e5..294f596 100644
--- a/src/wstool/config_yaml.py
+++ b/src/wstool/config_yaml.py
@@ -442,11 +442,8 @@ def generate_config_yaml(config, filename, header, pretty=False,
     items = [x.get_legacy_yaml(spec, exact) for x in items]
 
     if items:
-        if pretty:
-            content += yaml.safe_dump(items, allow_unicode=True,
-                                      default_flow_style=False)
-        else:
-            content += yaml.safe_dump(items)
+        content += yaml.safe_dump(items, allow_unicode=True,
+                                  default_flow_style=False if pretty else None)
 
     if filename:
         config_filepath = filename if os.path.isabs(filename) else \