diff --git a/plugin/ims_lti/add.php b/plugin/ims_lti/add.php
index 4be534257d..d1ec9667e8 100644
--- a/plugin/ims_lti/add.php
+++ b/plugin/ims_lti/add.php
@@ -72,7 +72,7 @@ if ($form->validate()) {
         ->setDescription(
             empty($formValues['description']) ? null : $formValues['description']
         )
-        ->isGlobal(false);
+        ->setIsGlobal(false);
     $em->persist($tool);
     $em->flush();
 
@@ -87,7 +87,7 @@ if ($form->validate()) {
 }
 
 $template = new Template($plugin->get_lang('AddExternalTool'));
-$template->assign('type', $baseTool->getId());
+$template->assign('type', $baseTool ? $baseTool->getId() : null);
 $template->assign('tools', $globalTools);
 $template->assign('form', $form->returnForm());
 
diff --git a/plugin/ims_lti/lang/english.php b/plugin/ims_lti/lang/english.php
index b2ded056c2..42f7dd9d08 100644
--- a/plugin/ims_lti/lang/english.php
+++ b/plugin/ims_lti/lang/english.php
@@ -21,3 +21,4 @@ $strings['ToolNotAvailable'] = 'Tool not available';
 $strings['IsGlobal'] = 'Is global';
 $strings['EditExternalTool'] = 'Edit external tool';
 $strings['ToolDeleted'] = 'Tool deleted';
+$strings['ToolAdded'] = 'Tool added';
diff --git a/plugin/ims_lti/lang/french.php b/plugin/ims_lti/lang/french.php
index d1d12e3c6c..2ca65d60c5 100644
--- a/plugin/ims_lti/lang/french.php
+++ b/plugin/ims_lti/lang/french.php
@@ -21,3 +21,4 @@ $strings['ToolNotAvailable'] = 'Outil non disponible';
 $strings['IsGlobal'] = 'Est global';
 $strings['EditExternalTool'] = 'Éditer outil externe';
 $strings['ToolDeleted'] = 'Outil supprimé';
+$strings['ToolAdded'] = 'Outil ajouté';
diff --git a/plugin/ims_lti/lang/spanish.php b/plugin/ims_lti/lang/spanish.php
index 18aaada3de..de3829c582 100644
--- a/plugin/ims_lti/lang/spanish.php
+++ b/plugin/ims_lti/lang/spanish.php
@@ -21,3 +21,4 @@ $strings['ToolNotAvailable'] = 'Herramienta no disponible';
 $strings['IsGlobal'] = 'Es global';
 $strings['EditExternalTool'] = 'Editar herramienta externa';
 $strings['ToolDeleted'] = 'Herramienta eliminada';
+$strings['ToolAdded'] = 'Herramienta agregada';