diff --git a/t/db_dependent/Koha/Plugins/Biblio_and_Items_plugin_hooks.t b/t/db_dependent/Koha/Plugins/Biblio_and_Items_plugin_hooks.t
index 09f9517741..d3bfd6041c 100755
--- a/t/db_dependent/Koha/Plugins/Biblio_and_Items_plugin_hooks.t
+++ b/t/db_dependent/Koha/Plugins/Biblio_and_Items_plugin_hooks.t
@@ -62,11 +62,11 @@ subtest 'after_biblio_action() and after_item_action() hooks tests' => sub {
     my $biblio_id;
 
     warning_like { ( $biblio_id, undef ) = C4::Biblio::AddBiblio( MARC::Record->new(), '' ); }
-    qr/after_biblio_action called with action: create, ref: Koha::Biblio/,
+    qr/after_biblio_action called with action: create, ref: Koha::Biblio, biblio found/,
         'AddBiblio calls the hook with action=create';
 
     warning_like { C4::Biblio::ModBiblio( MARC::Record->new(), $biblio_id, '' ); }
-    qr/after_biblio_action called with action: modify, ref: Koha::Biblio/,
+    qr/after_biblio_action called with action: modify, ref: Koha::Biblio, biblio found/,
         'ModBiblio calls the hook with action=modify';
 
     my $item;
diff --git a/t/lib/plugins/Koha/Plugin/Test.pm b/t/lib/plugins/Koha/Plugin/Test.pm
index 4d6bd517f6..0d9ad568c3 100644
--- a/t/lib/plugins/Koha/Plugin/Test.pm
+++ b/t/lib/plugins/Koha/Plugin/Test.pm
@@ -6,6 +6,8 @@ use Modern::Perl;
 use Koha::Exception;
 use Koha::Plugins::Tab;
 
+use Koha::Biblios;
+
 use MARC::Field;
 use Mojo::JSON qw( decode_json );
 
@@ -192,7 +194,15 @@ sub after_biblio_action {
     my $biblio_id = $payload->{biblio_id};
 
     if ( $action ne 'delete' ) {
-        Koha::Exception->throw( "after_biblio_action called with action: $action, ref: " . ref($biblio) );
+        $biblio = Koha::Biblios->find($biblio_id);
+        if ($biblio) {
+            $biblio_id = $biblio->id;
+            Koha::Exception->throw(
+                "after_biblio_action called with action: $action, ref: " . ref($biblio) . ", biblio found" );
+        } else {
+            Koha::Exception->throw(
+                "after_biblio_action called with action: $action, ref: " . ref($biblio) . ", biblio not found" );
+        }
     } else {
         Koha::Exception->throw("after_biblio_action called with action: $action, id: $biblio_id") if $biblio_id;
     }