diff --git a/src/storm/storage/sparse/ModelComponents.h b/src/storm/storage/sparse/ModelComponents.h
index ca325b73c..29ae3d14b 100644
--- a/src/storm/storage/sparse/ModelComponents.h
+++ b/src/storm/storage/sparse/ModelComponents.h
@@ -21,35 +21,37 @@
 namespace storm {
     namespace storage {
         namespace sparse {
-            
+
             template<typename ValueType, typename RewardModelType = storm::models::sparse::StandardRewardModel<ValueType>>
             struct ModelComponents {
-                
+
                 ModelComponents(storm::storage::SparseMatrix<ValueType> const& transitionMatrix,
                                 storm::models::sparse::StateLabeling const& stateLabeling = storm::models::sparse::StateLabeling(),
                                 std::unordered_map<std::string, RewardModelType> const& rewardModels =  std::unordered_map<std::string, RewardModelType>(),
                                 bool rateTransitions = false,
                                 boost::optional<storm::storage::BitVector> const& markovianStates = boost::none,
-                                boost::optional<storm::storage::SparseMatrix<storm::storage::sparse::state_type>> const& player1Matrix = boost::none)
-                        : transitionMatrix(transitionMatrix), stateLabeling(stateLabeling), rewardModels(rewardModels), rateTransitions(rateTransitions), markovianStates(markovianStates), player1Matrix(player1Matrix) {
+                                boost::optional<storm::storage::SparseMatrix<storm::storage::sparse::state_type>> const& player1Matrix = boost::none,
+                                boost::optional<std::vector<uint_fast32_t>> const& playerActionIndices = boost::none)
+                        : transitionMatrix(transitionMatrix), stateLabeling(stateLabeling), rewardModels(rewardModels), rateTransitions(rateTransitions), markovianStates(markovianStates), player1Matrix(player1Matrix), playerActionIndices(playerActionIndices) {
                     // Intentionally left empty
                 }
-              
+
                 ModelComponents(storm::storage::SparseMatrix<ValueType>&& transitionMatrix = storm::storage::SparseMatrix<ValueType>(),
                                 storm::models::sparse::StateLabeling&& stateLabeling = storm::models::sparse::StateLabeling(),
                                 std::unordered_map<std::string, RewardModelType>&& rewardModels =  std::unordered_map<std::string, RewardModelType>(),
                                 bool rateTransitions = false,
                                 boost::optional<storm::storage::BitVector>&& markovianStates = boost::none,
-                                boost::optional<storm::storage::SparseMatrix<storm::storage::sparse::state_type>>&& player1Matrix = boost::none)
-                        : transitionMatrix(std::move(transitionMatrix)), stateLabeling(std::move(stateLabeling)), rewardModels(std::move(rewardModels)), rateTransitions(rateTransitions), markovianStates(std::move(markovianStates)), player1Matrix(std::move(player1Matrix)) {
+                                boost::optional<storm::storage::SparseMatrix<storm::storage::sparse::state_type>>&& player1Matrix = boost::none,
+                                boost::optional<std::vector<uint_fast32_t>>&& playerActionIndices = boost::none)
+                        : transitionMatrix(std::move(transitionMatrix)), stateLabeling(std::move(stateLabeling)), rewardModels(std::move(rewardModels)), rateTransitions(rateTransitions), markovianStates(std::move(markovianStates)), player1Matrix(std::move(player1Matrix)), playerActionIndices(std::move(playerActionIndices)) {
                     // Intentionally left empty
                 }
-                
-                
-                
-                
+
+
+
+
                 // General components (applicable for all model types):
-                
+
                 // The transition matrix.
                 storm::storage::SparseMatrix<ValueType> transitionMatrix;
                 // The state labeling.
@@ -80,7 +82,11 @@ namespace storm {
                 // Stochastic two player game specific components:
                 // The matrix of player 1 choices (needed for stochastic two player games
                 boost::optional<storm::storage::SparseMatrix<storm::storage::sparse::state_type>> player1Matrix;
+
+                // Stochastic multiplayer game specific components:
+                // The vector mapping state choices to players
+                boost::optional<std::vector<uint_fast32_t>> playerActionIndices;
             };
         }
     }
-}
\ No newline at end of file
+}