diff --git a/src/plugins/tls/securetransport/qtls_st.cpp b/src/plugins/tls/securetransport/qtls_st.cpp
index cde5c05a358..48b7f3364f8 100644
--- a/src/plugins/tls/securetransport/qtls_st.cpp
+++ b/src/plugins/tls/securetransport/qtls_st.cpp
@@ -373,6 +373,7 @@ void TlsCryptographSecureTransport::disconnectFromHost()
     if (context) {
         if (!shutdown) {
             SSLClose(context);
+            context.reset(nullptr);
             shutdown = true;
         }
     }