diff --git a/minifirewall.conf b/minifirewall.conf
index b6c357c..92ad55b 100644
--- a/minifirewall.conf
+++ b/minifirewall.conf
@@ -6,7 +6,7 @@
 INT='eth0'
 
 # IPv6
-IPV6=on
+IPV6='on'
 
 # Docker Mode
 # Changes the behaviour of minifirewall to not break the containers' network