diff --git a/Koha/Localization.pm b/Koha/Localization.pm
index 3ee44fd12c..d24bc35a86 100644
--- a/Koha/Localization.pm
+++ b/Koha/Localization.pm
@@ -21,6 +21,7 @@ use Koha::Database;
 
 use base qw(Koha::Object);
 
+use Koha::Caches;
 my $cache = Koha::Caches->get_instance();
 
 =head1 NAME
diff --git a/Koha/MarcOverlayRule.pm b/Koha/MarcOverlayRule.pm
index 6c0265f23d..8535292545 100644
--- a/Koha/MarcOverlayRule.pm
+++ b/Koha/MarcOverlayRule.pm
@@ -19,6 +19,7 @@ use Modern::Perl;
 
 use parent qw(Koha::Object);
 
+use Koha::Caches;
 my $cache = Koha::Caches->get_instance();
 
 =head1 NAME
diff --git a/opac/svc/auth/googleopenidconnect b/opac/svc/auth/googleopenidconnect
index a6af900866..14de503e1d 100755
--- a/opac/svc/auth/googleopenidconnect
+++ b/opac/svc/auth/googleopenidconnect
@@ -34,7 +34,7 @@ use Modern::Perl;
 use CGI      qw ( -utf8 escape );
 use C4::Auth qw{ checkauth get_session get_template_and_user };
 use C4::Context;
-use C4::Output;
+use C4::Output qw{ output_html_with_http_headers };
 use Koha::Patrons;
 
 use LWP::UserAgent;