diff --git a/src/cli/cli_tcp.cpp b/src/cli/cli_tcp.cpp
index d243251a4d4..7471e661aeb 100644
--- a/src/cli/cli_tcp.cpp
+++ b/src/cli/cli_tcp.cpp
@@ -304,6 +304,8 @@ template <> otError TcpExample::Process<Cmd("deinit")>(Arg aArgs[])
 
         mbedtls_pk_free(&mPKey);
         mbedtls_x509_crt_free(&mSrvCert);
+
+        mUseTls = false;
     }
 #endif