diff --git a/debian9.md b/debian9.md
index 3f3e824..e65a866 100644
--- a/debian9.md
+++ b/debian9.md
@@ -43,5 +43,7 @@ ignore = 127.0.0.1/8 10.0.0.1/8
 
 ### dnscrypt
 
+Needs to be purged and reinstalled: `apt purge dnscrypt-proxy && apt install dnscrypt-proxy`
+
 Switch from init.d script to systemd. Systemd script can be obtained from the [Arch
 Wiki](https://wiki.archlinux.org/index.php/DNSCrypt)