diff --git a/ringo/model/base.py b/ringo/model/base.py
index 0973f524..730ae80a 100644
--- a/ringo/model/base.py
+++ b/ringo/model/base.py
@@ -348,17 +348,9 @@ def get_values(self, include_relations=False, serialized=False):
         :serialized: Flag if the values should be serialized.
         :returns: Dictionary with key value pairs.
         """
-        values = {}
-        for field in get_columns_from_instance(self, include_relations):
-            # Ignore private form fields
-            if field.startswith("_"):
-                continue
-            if serialized:
-                value = serialize(getattr(self, field))
-            else:
-                value = getattr(self, field)
-            values[field] = value
-        return values
+        if serialized:
+            return {k:serialize(v) for k,v in vars(self).items() if not k.startswith("_")}
+        return {k:v for k,v in vars(self).items() if not k.startswith("_")}
 
     def set_values(self, values, use_strict=False):
         """Will set the values of the item. The values to be set are