diff --git a/DDG4/python/DDSim/DD4hepSimulation.py b/DDG4/python/DDSim/DD4hepSimulation.py
index 28cd3e4216b583a1149e461e84035d318b73f0f6..cb526d4e58bd9f46958ebade101cf7f5b7a2c045 100644
--- a/DDG4/python/DDSim/DD4hepSimulation.py
+++ b/DDG4/python/DDSim/DD4hepSimulation.py
@@ -114,7 +114,7 @@ class DD4hepSimulation(object):
     DD4hepSimulation object present in the steering file.
     """
     globs = {}
-    locs = {}
+    locs = {"SIM": self}
     if not self.steeringFile:
       return
     sFileTemp = self.steeringFile