diff --git a/src/session.c b/src/session.c
index b065ff3..710b6b6 100644
--- a/src/session.c
+++ b/src/session.c
@@ -99,6 +99,7 @@
 void conn_session_free(struct connection *conn)
 {
 	session_free(conn->owner);
+	conn->owner = NULL;
 }
 
 /* count a new session to keep frontend, listener and track stats up to date */