diff --git a/packages/web/src/lib/components/viewer/TabBar.svelte b/packages/web/src/lib/components/viewer/TabBar.svelte
index 59bbfec..ec9b1a6 100644
--- a/packages/web/src/lib/components/viewer/TabBar.svelte
+++ b/packages/web/src/lib/components/viewer/TabBar.svelte
@@ -36,5 +36,5 @@ const canClose = $derived(tabs.length > 1 || tabs[0]?.sessionId !== null);
     +
   </button>
 
-  <div class="flex-1 border-b border-edge"></div>
+  <div class="flex-1"></div>
 </div>