diff -up fail2ban-0.10.1/config/action.d/firewallcmd-ipset.conf.ipset fail2ban-0.10.1/config/action.d/firewallcmd-ipset.conf
--- fail2ban-0.10.1/config/action.d/firewallcmd-ipset.conf.ipset	2017-10-12 05:46:46.000000000 -0600
+++ fail2ban-0.10.1/config/action.d/firewallcmd-ipset.conf	2017-12-30 12:51:29.714747457 -0700
@@ -18,7 +18,7 @@ before = firewallcmd-common.conf
 
 [Definition]
 
-actionstart = ipset create <ipmset> hash:ip timeout <bantime>
+actionstart = ipset create <ipmset> hash:ip timeout <bantime><familyopt>
               firewall-cmd --direct --add-rule <family> filter <chain> 0 -p <protocol> -m multiport --dports <port> -m set --match-set <ipmset> src -j <blocktype>
 
 actionstop = firewall-cmd --direct --remove-rule <family> filter <chain> 0 -p <protocol> -m multiport --dports <port> -m set --match-set <ipmset> src -j <blocktype>
@@ -45,10 +45,12 @@ chain = INPUT_direct
 bantime = 600
 
 ipmset = f2b-<name>
+familyopt =
 
 [Init?family=inet6]
 
 ipmset = f2b-<name>6
+familyopt = <sp>family inet6
 
 
 # DEV NOTES:
diff -up fail2ban-0.10.1/fail2ban/tests/servertestcase.py.ipset fail2ban-0.10.1/fail2ban/tests/servertestcase.py
--- fail2ban-0.10.1/fail2ban/tests/servertestcase.py.ipset	2017-12-30 12:51:29.714747457 -0700
+++ fail2ban-0.10.1/fail2ban/tests/servertestcase.py	2017-12-30 12:52:05.823412753 -0700
@@ -1644,7 +1644,7 @@ class ServerConfigReaderTests(LogCapture
 						"`firewall-cmd --direct --add-rule ipv4 filter INPUT 0 -p tcp -m multiport --dports http -m set --match-set f2b-j-w-fwcmd-ipset src -j REJECT --reject-with icmp-port-unreachable`",
 					), 
 					'ip6-start': (
-						"`ipset create f2b-j-w-fwcmd-ipset6 hash:ip timeout 600`",
+						"`ipset create f2b-j-w-fwcmd-ipset6 hash:ip timeout 600 family inet6`",
 						"`firewall-cmd --direct --add-rule ipv6 filter INPUT 0 -p tcp -m multiport --dports http -m set --match-set f2b-j-w-fwcmd-ipset6 src -j REJECT --reject-with icmp6-port-unreachable`",
 					),
 					'stop': (