diff --git a/plugins/get.pm b/plugins/get.pm
index 9b7c934..63457d0 100644
--- a/plugins/get.pm
+++ b/plugins/get.pm
@@ -1,3 +1,4 @@
+use Net::INET6Glue::INET_is_INET6;
 use LWP::UserAgent;
 use HTML::TreeBuilder::XPath;
 
diff --git a/plugins/head.pm b/plugins/head.pm
index b9193af..79ff37e 100644
--- a/plugins/head.pm
+++ b/plugins/head.pm
@@ -1,3 +1,4 @@
+use Net::INET6Glue::INET_is_INET6;
 use LWP::UserAgent;
 no warnings 'void';
 sub {
diff --git a/plugins/title.pm b/plugins/title.pm
index 7241b5b..7e15089 100644
--- a/plugins/title.pm
+++ b/plugins/title.pm
@@ -1,3 +1,4 @@
+use Net::INET6Glue::INET_is_INET6;
 use WWW::Mechanize;
 no warnings 'void';
 sub {