Can't connect to GUI as Syncthing is only listening on ipv6

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On my Server I got both ipv4&6 connectivity working out of the box but at home I don’t have an ipv6 adress. As you can see below other programs listen on both.

$ sudo netstat -ntpl
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      1778/sshd       
tcp        0      0 127.0.0.1:5432          0.0.0.0:*               LISTEN      1837/postgres   
tcp        0      0 127.0.0.1:58846         0.0.0.0:*               LISTEN      10221/python        
tcp        0      0 127.0.0.1:6379          0.0.0.0:*               LISTEN      2076/redis-server 1
tcp        0      0 0.0.0.0:8112            0.0.0.0:*               LISTEN      10229/python    
tcp        0      0 0.0.0.0:80              0.0.0.0:*               LISTEN      1917/nginx      
tcp6       0      0 :::22                   :::*                    LISTEN      1778/sshd       
tcp6       0      0 ::1:5432                :::*                    LISTEN      1837/postgres   
tcp6       0      0 :::8000                 :::*                    LISTEN      21764/syncthing     
tcp6       0      0 :::22000                :::*                    LISTEN      21764/syncthing

The config.xml has a ipv4 formatted adress: <address>0.0.0.0:8000</address>

How do I get syncthing to listen at ipv4 too?

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