diff --git a/plugin/ims_lti/multiply_session.php b/plugin/ims_lti/multiply_session.php
index 8e74f7dc57..691319c190 100644
--- a/plugin/ims_lti/multiply_session.php
+++ b/plugin/ims_lti/multiply_session.php
@@ -67,7 +67,7 @@ try {
                 ]
             ),
             'multiple' => true
-        ]        
+        ]
     );
     $form->addCheckBox('tool_visible', get_lang('SetVisible'), get_lang('ToolIsNowVisible'));
     $form->addButtonExport(get_lang('Save'));
diff --git a/plugin/ims_lti/session.php b/plugin/ims_lti/session.php
index 49ccbd8e41..3e52e234ae 100644
--- a/plugin/ims_lti/session.php
+++ b/plugin/ims_lti/session.php
@@ -50,7 +50,7 @@ try {
                 ]
             ),
             'multiple' => false
-        ]        
+        ]
     );
     $form->addHidden('tool_id', $tool->getId());
     $form->addButtonExport(get_lang('Next'));