diff --git a/web_src/js/components/DiffFileTreeItem.vue b/web_src/js/components/DiffFileTreeItem.vue
index 22c23f3ca0..9d7ab4afc5 100644
--- a/web_src/js/components/DiffFileTreeItem.vue
+++ b/web_src/js/components/DiffFileTreeItem.vue
@@ -61,11 +61,12 @@ a, a:hover {
   display: flex;
   flex-direction: column;
   gap: 1px;
-  padding-left: 8px;
+  margin-left: 13px;
+  border-left: 1px solid var(--color-secondary);
 }
 
 .sub-items .item-file {
-  padding-left: 24px;
+  padding-left: 18px;
 }
 
 .item-file.selected {