diff --git a/Modules/LearningModule/classes/class.ilLMTracker.php b/Modules/LearningModule/classes/class.ilLMTracker.php
index 7c22122bc0a3..e342275ba131 100644
--- a/Modules/LearningModule/classes/class.ilLMTracker.php
+++ b/Modules/LearningModule/classes/class.ilLMTracker.php
@@ -495,7 +495,7 @@ public function getIconForLMObject(
             return $icons->getImagePathRunning();
         }
         if (isset($this->tree_arr["nodes"][$a_node["child"]])) {
-            switch ($this->tree_arr["nodes"][$a_node["child"]]["status"]) {
+            switch ($this->tree_arr["nodes"][$a_node["child"]]["status"] ?? null) {
                 case ilLMTracker::IN_PROGRESS:
                     return $icons->getImagePathInProgress();