3 files changed, 3 insertions, 0 deletions
diff --git a/Bugzilla/User/Setting/Lang.pm b/Bugzilla/User/Setting/Lang.pm
index 4465185e3..d980b7a92 100644
--- a/Bugzilla/User/Setting/Lang.pm
+++ b/Bugzilla/User/Setting/Lang.pm
@@ -9,6 +9,7 @@ package Bugzilla::User::Setting::Lang;
 
 use 5.10.1;
 use strict;
+use warnings;
 
 use parent qw(Bugzilla::User::Setting);
 
diff --git a/Bugzilla/User/Setting/Skin.pm b/Bugzilla/User/Setting/Skin.pm
index 1e4e95a03..7b0688c0c 100644
--- a/Bugzilla/User/Setting/Skin.pm
+++ b/Bugzilla/User/Setting/Skin.pm
@@ -10,6 +10,7 @@ package Bugzilla::User::Setting::Skin;
 
 use 5.10.1;
 use strict;
+use warnings;
 
 use parent qw(Bugzilla::User::Setting);
 
diff --git a/Bugzilla/User/Setting/Timezone.pm b/Bugzilla/User/Setting/Timezone.pm
index 848fa418f..8959d1dda 100644
--- a/Bugzilla/User/Setting/Timezone.pm
+++ b/Bugzilla/User/Setting/Timezone.pm
@@ -9,6 +9,7 @@ package Bugzilla::User::Setting::Timezone;
 
 use 5.10.1;
 use strict;
+use warnings;
 
 use DateTime::TimeZone;