diff --git a/Classes/DataProcessing/IconsDataProcessor.php b/Classes/DataProcessing/IconsDataProcessor.php
index ab8f70f16..602548de0 100644
--- a/Classes/DataProcessing/IconsDataProcessor.php
+++ b/Classes/DataProcessing/IconsDataProcessor.php
@@ -70,7 +70,7 @@ public function process(ContentObjectRenderer $cObj, array $contentObjectConfigu
                 $cObj,
                 $contentObjectConfiguration,
                 ['references.' => ['fieldName' => $config['iconFileFieldName']]],
-                ['data' => $processedData['data']]
+                ['data' => $processedData['data'] ?? []]
             );
             if (isset($filesData['files'][0])) {
                 $file = $filesData['files'][0];