diff --git a/app/css/app.css b/app/css/app.css
index 3fcb938d..7397619b 100644
--- a/app/css/app.css
+++ b/app/css/app.css
@@ -1601,6 +1601,8 @@ img.im_message_document_thumb {
   width: 50px;
   display: block;
   overflow: hidden;
+  white-space: nowrap;
+  text-overflow: ellipsis;
 }
 
 .tg_up_progress,