diff --git a/README.md b/README.md
index 2197b9f..9b0c2d1 100644
--- a/README.md
+++ b/README.md
@@ -83,3 +83,6 @@ URL: /nic/update?hostname=
   ```
   dig your.domain ANY @ns1.your.domain
   ```
+## Common pitfalls
+
+* If you're on a systemd-based distribution, the process `systemd-resolved` might occupy the DNS port 53. Therefore starting the container might fail. To fix this disable the DNSStubListener by adding `DNSStubListener=no` to `/etc/systemd/resolved.conf` and restart the service using `sudo systemctl restart systemd-resolved.service` but be aware of the implications... Read more here: https://www.freedesktop.org/software/systemd/man/systemd-resolved.service.html and https://github.com/dprandzioch/docker-ddns/issues/5