diff --git a/mod/lesson/lib.php b/mod/lesson/lib.php
index d5055ccf7dd..af5ec778f63 100644
--- a/mod/lesson/lib.php
+++ b/mod/lesson/lib.php
@@ -742,8 +742,6 @@ 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: