diff --git a/src/components/file_mode/ThumbnailView.vue b/src/components/file_mode/ThumbnailView.vue
index 4e144c2..30ed8cb 100644
--- a/src/components/file_mode/ThumbnailView.vue
+++ b/src/components/file_mode/ThumbnailView.vue
@@ -101,11 +101,7 @@ const updateSource = () => {
       eventAttachment.loadThumbnail().then((url) => {
         source.value = url.data;
       })
-    } else if (isImage.value) {
-      eventAttachment.loadSrc().then((url) => {
-        source.value = url.data;
-      })
-    } else if (isVideo.value) {
+    } else if (isImage.value || isVideo.value || isPDF.value) {
       eventAttachment.loadSrc().then((url) => {
         source.value = url.data;
       })