--- a/kio/kio/tcpslavebase.cpp
+++ b/kio/kio/tcpslavebase.cpp
@@ -499,7 +499,7 @@
 {
     if (d->usingSSL)
         return false;
-    return d->startTLSInternal(KTcpSocket::TlsV1) & ResultOk;
+    return d->startTLSInternal(KTcpSocket::SecureProtocols) & ResultOk;
 }
 
 TCPSlaveBase::SslResult TCPSlaveBase::TcpSlaveBasePrivate::startTLSInternal (KTcpSocket::SslVersion version,