diff --git a/apps/web/app/(app)/[workspaceSlug]/settings/runs/page.tsx b/apps/web/app/(app)/[workspaceSlug]/settings/runs/page.tsx
index 9d45c60..6ecdf58 100644
--- a/apps/web/app/(app)/[workspaceSlug]/settings/runs/page.tsx
+++ b/apps/web/app/(app)/[workspaceSlug]/settings/runs/page.tsx
@@ -66,7 +66,7 @@ function formatTimestamp(when: Date | string): string {
  * for in-flight runs (no `finishedAt`). Below a minute we show seconds
  * with a single decimal so quick MCP calls don't all look like "0s".
  */
-export function formatDuration(
+function formatDuration(
   startedAt: Date | string,
   finishedAt: Date | string | null,
 ): string {