diff --git a/test/regression/run.py b/test/regression/run.py
index 05ce3f4bc..4763ad9d3 100755
--- a/test/regression/run.py
+++ b/test/regression/run.py
@@ -294,6 +294,6 @@ def run_test():
 if __name__ == "__main__":
     assimp_bin_path = sys.argv[1] if len(sys.argv) > 1 else 'assimp'
     print('Using assimp binary: ' + assimp_bin_path)
-    return run_test()
+    sys.exit( run_test() )
 
 # vim: ai ts=4 sts=4 et sw=4