diff --git a/src/session.c b/src/session.c
index 8ff16719..2aa4d8b7 100644
--- a/src/session.c
+++ b/src/session.c
@@ -1168,7 +1168,7 @@ libssh2_session_disconnect_ex(LIBSSH2_SESSION *session, int reason,
                               const char *desc, const char *lang)
 {
     int rc;
-    session->state = 0;
+    session->state &= ~LIBSSH2_STATE_EXCHANGING_KEYS;
     BLOCK_ADJUST(rc, session,
                  session_disconnect(session, reason, desc, lang));