diff --git a/python/pyspark/sql/session.py b/python/pyspark/sql/session.py
index 61fa107497c6..8418abf99c8d 100644
--- a/python/pyspark/sql/session.py
+++ b/python/pyspark/sql/session.py
@@ -595,6 +595,7 @@ def stop(self):
         """Stop the underlying :class:`SparkContext`.
         """
         self._sc.stop()
+        SparkSession._instantiatedContext = None
 
     @since(2.0)
     def __enter__(self):