diff --git a/libcnmc/models/cnmcmodel.py b/libcnmc/models/cnmcmodel.py
index f70266b0..ca388666 100644
--- a/libcnmc/models/cnmcmodel.py
+++ b/libcnmc/models/cnmcmodel.py
@@ -56,7 +56,12 @@ def __init__(self, *values, **kwvalues):
         """
         self.validator = CNMCValidator(self.schema)
         stored = namedtuple('{0}_store'.format(self.__class__.__name__), self.fields)
-        self.store = stored(*values, **kwvalues)
+        for idx, k in enumerate(self.fields):
+            if idx < len(values):
+                kwvalues[k] = values[idx]
+            elif k not in kwvalues:
+                kwvalues[k] = None
+        self.store = stored(**kwvalues)
         self.validator.validate(self.store._asdict())
         self.store = stored(**self.validator.document)