diff --git a/include/artifact.hpp b/include/artifact.hpp
index b09662a..6723b20 100644
--- a/include/artifact.hpp
+++ b/include/artifact.hpp
@@ -200,6 +200,8 @@ class ActArtifact: public Artifact {
 struct testcase_t {
     /** Commands to be executed for this testcase */
     std::vector<std::string> commands;
+    /** Top process for the simulation */
+    std::string top;
     /** This simulation should be run by multiple noes */
     bool parallelizable;
     /** Maximum pipeline load factor that should be allowed */
@@ -225,7 +227,7 @@ class SimConfigArtifact: public Artifact {
      * 
      * @return std::vector<testcase_t> Vector of all generated testcase structures
      */
-    std::vector<testcase_t> get_content() { return testcases; };
+    std::vector<testcase_t>& get_content() { return testcases; };
 
 
     /**