diff --git a/rosco/toolbox/inputs/validation.py b/rosco/toolbox/inputs/validation.py
index ade0f3ed..aacdac6d 100644
--- a/rosco/toolbox/inputs/validation.py
+++ b/rosco/toolbox/inputs/validation.py
@@ -3,9 +3,9 @@
 
 schema_dir = os.path.dirname(os.path.abspath(__file__))
 
-def load_rosco_yaml(finput):
+def load_rosco_yaml(finput, rank_0=False):
     rosco_schema = os.path.join(schema_dir,'toolbox_schema.yaml')
-    return _validate(finput, rosco_schema, defaults=True)
+    return _validate(finput, rosco_schema, defaults=True, rank_0=rank_0)
 
 
 if __name__=='__main__':