diff --git a/mod/lesson/lib.php b/mod/lesson/lib.php
index 43104593877..89f211f5bc0 100644
--- a/mod/lesson/lib.php
+++ b/mod/lesson/lib.php
@@ -729,8 +729,6 @@ function lesson_supports($feature) {
             return false;
         case FEATURE_GROUPINGS:
             return false;
-        case FEATURE_GROUPMEMBERSONLY:
-            return true;
         case FEATURE_MOD_INTRO:
             return true;
         case FEATURE_COMPLETION_TRACKS_VIEWS: