diff --git a/proxy/http/HttpClientSession.h b/proxy/http/HttpClientSession.h
index 5c5ae53..261db0d 100644
--- a/proxy/http/HttpClientSession.h
+++ b/proxy/http/HttpClientSession.h
@@ -128,6 +128,12 @@ public:
     upgrade_to_h2c = true;
   }

+  void
+  release_current_reader()
+  {
+    current_reader = NULL;
+  }
+
 private:
   HttpClientSession(HttpClientSession &);

diff --git a/proxy/http/HttpSM.cc b/proxy/http/HttpSM.cc
index c9b1322..5204a31 100644
--- a/proxy/http/HttpSM.cc
+++ b/proxy/http/HttpSM.cc
@@ -6581,6 +6581,10 @@ HttpSM::kill_this()
       // Not keep alive, go ahead and shut it down
       ua_session->do_io_close();
     }
+    // reset the ua_session's reader (HttpSM) to prevent double free
+    // in HttpClientSession::destroy()
+    ua_session->release_current_reader();
+
     ua_session = NULL;
   }