diff --git a/docs/ftldns/regex/overview.md b/docs/ftldns/regex/overview.md
index 16858f5..7190d8d 100644
--- a/docs/ftldns/regex/overview.md
+++ b/docs/ftldns/regex/overview.md
@@ -14,13 +14,13 @@ To tell *FTL*DNS to reload the list, either:
 ## Pi-hole Regex debugging mode
 To ease the usage of regular expression filters in *FTL*DNS, we offer a regex debugging mode. Set
 ```
-REGEX_DEBUGMODE=true
+DEBUG_REGEX=true
 ```
 in your `/etc/pihole/pihole-FTL.conf` and restart `pihole-FTL` to enable or disable this mode.
 
 Once the debugging mode is enabled, each match will be logged to `/var/log/pihole-FTL.log` in the following format:
 ```
-[2018-07-17 17:40:51.304] DEBUG: Regex in line 2 "((^)|(\.))twitter\." matches "whatever.twitter.com"
+[2018-07-17 17:40:51.304] Regex in line 2 "((^)|(\.))twitter\." matches "whatever.twitter.com"
 ```
 The given line number corresponds to the line in the file `/etc/pihole/regex.list`.