diff --git a/Koha/Plugins.pm b/Koha/Plugins.pm
index 8d6957a298..092c5e01b7 100644
--- a/Koha/Plugins.pm
+++ b/Koha/Plugins.pm
@@ -19,6 +19,7 @@ package Koha::Plugins;
 
 use Modern::Perl;
 
+use Array::Utils qw(array_minus);
 use Class::Inspector;
 use List::MoreUtils qw(any);
 use Module::Load::Conditional qw(can_load);
@@ -32,7 +33,7 @@ use Koha::Plugins::Methods;
 BEGIN {
     my $pluginsdir = C4::Context->config("pluginsdir");
     my @pluginsdir = ref($pluginsdir) eq 'ARRAY' ? @$pluginsdir : $pluginsdir;
-    push( @INC, @pluginsdir );
+    push @INC, array_minus(@pluginsdir, @INC) ;
     pop @INC if $INC[-1] eq '.';
 }
 
diff --git a/Koha/Plugins/Handler.pm b/Koha/Plugins/Handler.pm
index aa4970c6fc..6c6ae73023 100644
--- a/Koha/Plugins/Handler.pm
+++ b/Koha/Plugins/Handler.pm
@@ -19,6 +19,7 @@ package Koha::Plugins::Handler;
 
 use Modern::Perl;
 
+use Array::Utils qw(array_minus);
 use File::Path qw(remove_tree);
 
 use Module::Load qw(load);
@@ -29,7 +30,7 @@ use Koha::Plugins::Methods;
 BEGIN {
     my $pluginsdir = C4::Context->config("pluginsdir");
     my @pluginsdir = ref($pluginsdir) eq 'ARRAY' ? @$pluginsdir : $pluginsdir;
-    push( @INC, @pluginsdir );
+    push @INC, array_minus(@pluginsdir, @INC) ;
     pop @INC if $INC[-1] eq '.' ;
 }