diff --git a/httprunner/step.py b/httprunner/step.py
index 4e3edc12..efcc12be 100644
--- a/httprunner/step.py
+++ b/httprunner/step.py
@@ -34,4 +34,4 @@ class Step(object):
             StepThriftRequestExtraction,
         ],
     ):
-        super().__init__(step)
+        self.__step = step