diff --git a/docs/ftldns/regex.md b/docs/ftldns/regex.md
index 9af67a0..fa39b07 100644
--- a/docs/ftldns/regex.md
+++ b/docs/ftldns/regex.md
@@ -4,7 +4,7 @@ We implement the ERE flavor similar to the one used by the UNIX `egrep` (or `gre
 Our implementation is computationally inexpensive as each domain is only checked once for a match (if you query `google.com`, it will be checked against your RegEx. Any subsequent query to the same domain will not be checked again until you restart `pihole-FTL`).
 
 ## How to use regular expressions for blocking
-*FTL*DNS reads in regular expression filters from `/etc/pihole/regex.list` (one expression per line).
+*FTL*DNS reads in regular expression filters from `/etc/pihole/regex.list` (one expression per line, lines starting with `#` will be skipped).
 To tell *FTL*DNS to reload the list, either:
 
 - Execute the `>recompile-regex` API command (`echo ">recompile-regex" | nc localhost 4711`)