diff --git a/src/main/base/org/bdware/sc/node/ContractZipBundle.java b/src/main/base/org/bdware/sc/node/ContractZipBundle.java
index ad04304..6a9b054 100644
--- a/src/main/base/org/bdware/sc/node/ContractZipBundle.java
+++ b/src/main/base/org/bdware/sc/node/ContractZipBundle.java
@@ -6,6 +6,7 @@ import java.util.Map;
 public class ContractZipBundle {
     ContractManifest cm;
     Map<String, ContractNode> path2Node;
+    private ContractNode mergedContractNode;
 
     public ContractZipBundle() {
         path2Node = new HashMap<>();
@@ -28,6 +29,10 @@ public class ContractZipBundle {
     }
 
     public ContractNode mergeContractNode() {
+        return mergedContractNode;
+    }
+
+    public void setMergedContractNode() {
         ContractNode cn = new ContractNode(null);
         cn.memorySet = cm.memory;
         cn.setIsBundle(true);
@@ -41,6 +46,6 @@ public class ContractZipBundle {
             cn.merge(contract);
         }
         cn.mergeInterfaceAnnotationIntoFunction();
-        return cn;
+        this.mergedContractNode = cn;
     }
 }