1 files changed, 1 insertions, 1 deletions

diff --git a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/dse/internal/DesignSpaceExplorationAdapterImpl.java b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/dse/internal/DesignSpaceExplorationAdapterImpl.java
index 5adf8306..eb2fc063 100644
--- a/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/dse/internal/DesignSpaceExplorationAdapterImpl.java
+++ b/subprojects/store-query-viatra/src/main/java/tools/refinery/store/query/dse/internal/DesignSpaceExplorationAdapterImpl.java
@@ -42,7 +42,7 @@ public class DesignSpaceExplorationAdapterImpl implements DesignSpaceExploration
         private boolean isNewState = false;
 
         public List<Long> getTrajectory() {
-                return trajectory;
+                return new LinkedList<>(trajectory);
         }
 
         public DesignSpaceExplorationAdapterImpl(Model model, DesignSpaceExplorationStoreAdapterImpl storeAdapter) {