--- a/src/shogun/machine/LinearMulticlassMachine.h
+++ b/src/shogun/machine/LinearMulticlassMachine.h
@@ -152,7 +152,17 @@ class CLinearMulticlassMachine : public CMulticlassMachine
                         * have to be revised. Heiko Strathmann */
                        m_features->remove_subset();
                }
-
+
+               /** Stores feature data of underlying model.
+                * After this method has been called, it is possible to change
+                * the machine's feature data and call apply(), which is then performed
+                * on the training feature data that is part of the machine's model.
+                *
+                * Base method, has to be implemented in order to allow cross-validation
+                * and model selection.
+                */
+               virtual void store_model_features() {}
+