diff --git a/packages/web/src/perspectives/PerspectiveTable.svelte b/packages/web/src/perspectives/PerspectiveTable.svelte
index ede92f9d0..a35e11d3e 100644
--- a/packages/web/src/perspectives/PerspectiveTable.svelte
+++ b/packages/web/src/perspectives/PerspectiveTable.svelte
@@ -267,7 +267,7 @@
     padding: 0;
   }
 
-  thead tr:first-child th {
+  thead :global(tr:first-child) :global(th) {
     border-top: 1px solid var(--theme-border);
   }