diff --git a/plugin/buycourses/index.php b/plugin/buycourses/index.php
index 8dc1248350..415c5a63a6 100644
--- a/plugin/buycourses/index.php
+++ b/plugin/buycourses/index.php
@@ -3,5 +3,5 @@
 /**
  * Show form
  */
-require_once('config.php');
-require_once('src/index.buycourses.php');
+require_once 'config.php';
+require_once 'src/index.buycourses.php';
diff --git a/plugin/courselegal/readme.txt b/plugin/courselegal/README.md
old mode 100755
new mode 100644
similarity index 97%
rename from plugin/courselegal/readme.txt
rename to plugin/courselegal/README.md
index 68e8ea27d8..379049ba5d
--- a/plugin/courselegal/readme.txt
+++ b/plugin/courselegal/README.md
@@ -1,4 +1,5 @@
-README
+Installation
+============
 
 1. Enabled the plugin from the list of plugins.
 2. Click "Configure" once the plugin was enabled.
diff --git a/plugin/courselegal/config.php b/plugin/courselegal/config.php
index eb585b25d4..377a28bd26 100755
--- a/plugin/courselegal/config.php
+++ b/plugin/courselegal/config.php
@@ -2,5 +2,4 @@
 /* For licensing terms, see /license.txt */
 
 require_once __DIR__ . '/../../main/inc/global.inc.php';
-require_once api_get_path(LIBRARY_PATH).'plugin.class.php';
 require_once __DIR__.'/CourseLegalPlugin.php';
diff --git a/plugin/courselegal/plugin.php b/plugin/courselegal/plugin.php
index 1d5db350a2..ed8a3d39d2 100755
--- a/plugin/courselegal/plugin.php
+++ b/plugin/courselegal/plugin.php
@@ -1,5 +1,4 @@
 <?php
 
-require_once dirname(__FILE__) . '/config.php';
-
+require_once __DIR__ . '/config.php';
 $plugin_info = CourseLegalPlugin::create()->get_info();
diff --git a/plugin/olpc_peru_filter/lib/olpc_peru_filter_plugin.class.php b/plugin/olpc_peru_filter/lib/olpc_peru_filter_plugin.class.php
index 0240684f3f..c9ea56df67 100755
--- a/plugin/olpc_peru_filter/lib/olpc_peru_filter_plugin.class.php
+++ b/plugin/olpc_peru_filter/lib/olpc_peru_filter_plugin.class.php
@@ -15,8 +15,6 @@ class OLPC_Peru_FilterPlugin extends Plugin
 
     //When creating a new course, these settings are added to the course
     public $course_settings = array(
-//                    array('name' => 'big_blue_button_welcome_message',  'type' => 'text'),
-//                    array('name' => 'big_blue_button_record_and_store', 'type' => 'checkbox')
     );
     public $course_settings_callback = true;
     public $error = '';