diff --git a/main/install/configuration.dist.php b/main/install/configuration.dist.php
index 9ae579d43f..c118570871 100755
--- a/main/install/configuration.dist.php
+++ b/main/install/configuration.dist.php
@@ -1766,6 +1766,9 @@ $_configuration['auth_password_links'] = [
 // Allow all office suite documents to be uploaded in the "My files" section of the social network
 //$_configuration['social_myfiles_office_files_upload_allowed'] = false;
 
+// Enable a "Previous question" button in surveys
+// $_configuration['survey_backwards_enable'] = false;
+
 // KEEP THIS AT THE END
 // -------- Custom DB changes
 // Add user activation by confirmation email