diff --git a/lang/en/help/coursehiddentopics.html b/lang/en/help/coursehiddentopics.html
new file mode 100644
index 00000000000..94fb0b3717e
--- /dev/null
+++ b/lang/en/help/coursehiddentopics.html
@@ -0,0 +1,10 @@
+<p align="center"><b>Course hidden topics</b></p>
+
+<P>This option allows you to decide how the hidden topics in your course 
+   are going to be displayed to students.</p>
+
+<p>You can select to show them in collapsed form or hiding them 
+   at all.</p>
+
+<p>This setting only has effect in courses using the "Topics" format.</p>
+
diff --git a/lang/en/moodle.php b/lang/en/moodle.php
index 7c2e874edb2..6bab2fe7243 100644
--- a/lang/en/moodle.php
+++ b/lang/en/moodle.php
@@ -451,6 +451,9 @@ $string['helptext'] = 'How to write text';
 $string['helpwiki'] = 'How to write Wiki text';
 $string['helpwriting'] = 'Write carefully';
 $string['hide'] = 'Hide';
+$string['hiddentopics'] = 'Hidden Topics';
+$string['hiddentopicscollapsed'] = 'are shown in collapsed form';
+$string['hiddentopicsinvisible'] = 'are completely invisible';
 $string['hidepicture'] = 'Hide picture';
 $string['hits'] = 'Hits';
 $string['hitsoncourse'] = 'Hits on $a->coursename by $a->username';