diff --git a/install/lang/tpi/moodle.php b/install/lang/tpi/moodle.php
index efa38e84f2b93..5f848830bfc50 100644
--- a/install/lang/tpi/moodle.php
+++ b/install/lang/tpi/moodle.php
@@ -32,3 +32,4 @@
 $string['language'] = 'Tokples';
 $string['moodlelogo'] = 'Moodle logo';
 $string['next'] = 'Narap\'la';
+$string['previous'] = 'Bipo';