diff --git a/openvpn/ssl/proto.hpp b/openvpn/ssl/proto.hpp
index 53842845..1440ee90 100644
--- a/openvpn/ssl/proto.hpp
+++ b/openvpn/ssl/proto.hpp
@@ -518,7 +518,7 @@ namespace openvpn {
 	out << ",dev-type " << layer.dev_type();
 	out << ",link-mtu " << mtu() + link_mtu_adjust();
 	out << ",tun-mtu " << mtu();
-	out << ",proto " << protocol.str_client();
+	out << ",proto " << protocol.str_client(true);
 	
 	{
 	  const char *compstr = comp_ctx.options_string();
diff --git a/openvpn/transport/protocol.hpp b/openvpn/transport/protocol.hpp
index 849cafa1..625a7d8c 100644
--- a/openvpn/transport/protocol.hpp
+++ b/openvpn/transport/protocol.hpp
@@ -129,7 +129,7 @@ namespace openvpn {
 	}
     }
 
-    const char *str_client() const
+    const char *str_client(const bool force_ipv4) const
     {
       switch (type_)
 	{
@@ -138,9 +138,9 @@ namespace openvpn {
 	case TCPv4:
 	  return "TCPv4_CLIENT";
 	case UDPv6:
-	  return "UDPv6";
+	  return force_ipv4 ? "UDPv4" : "UDPv6";
 	case TCPv6:
-	  return "TCPv6_CLIENT";
+	  return force_ipv4 ? "TCPv4_CLIENT" : "TCPv6_CLIENT";
 	default:
 	  return "UNDEF_PROTO";
 	}