diff --git a/SofaRegressionProgram/tools/RegressionWorker.py b/SofaRegressionProgram/tools/RegressionWorker.py
index 9e264ca..f34e032 100644
--- a/SofaRegressionProgram/tools/RegressionWorker.py
+++ b/SofaRegressionProgram/tools/RegressionWorker.py
@@ -149,6 +149,7 @@ def _worker_main():
         if program_root not in sys.path:
             sys.path.insert(0, program_root)
 
+        import Sofa
         import SofaRuntime  # noqa: F401  (registers the py3 scene loader)
         import tools.RegressionSceneData as RegressionSceneData