diff --git a/src/core/thread/thread_netif.cpp b/src/core/thread/thread_netif.cpp
index 9c30caad9..2ee0bc603 100644
--- a/src/core/thread/thread_netif.cpp
+++ b/src/core/thread/thread_netif.cpp
@@ -86,9 +86,6 @@ void ThreadNetif::Down(void)
 #endif
 #if OPENTHREAD_CONFIG_DNSSD_SERVER_ENABLE
     Get<Dns::ServiceDiscovery::Server>().Stop();
-#endif
-#if OPENTHREAD_CONFIG_SECURE_TRANSPORT_ENABLE
-    Get<Tmf::SecureAgent>().Close();
 #endif
     IgnoreError(Get<Tmf::Agent>().Stop());
     IgnoreError(Get<Mle::MleRouter>().Disable());