diff --git a/app/views/oer/mymaterial/edit.php b/app/views/oer/mymaterial/edit.php
index 40089de675d76f4fc6a0e62f67cbd160fa885c18..a9957ae4aa5e17a47d4a0341865d871bac5ff4bd 100644
--- a/app/views/oer/mymaterial/edit.php
+++ b/app/views/oer/mymaterial/edit.php
@@ -70,7 +70,7 @@
             <? if (empty($_SESSION['NEW_OER']['tmp_name'])) : ?>
                 <label class="file drag-and-drop"
                        data-filename="<?= htmlReady($material['filename']) ?>"
-                       data-filesize="<?= htmlReady(!$material->isNew() ? filesize($material->getFilePath()) : "") ?>"
+                       data-filesize="<?= htmlReady(!$material->isNew() && file_exists($material->getFilePath()) ? filesize($material->getFilePath()) : "") ?>"
                        @drop.prevent="dropFile">
                     <?= _('Datei (gerne auch eine ZIP-Datei) auswählen') ?>
                     <input type="file" name="file" id="oer_file" @change="editFile">