diff --git a/tests/ui/accessibility.spec.js b/tests/ui/accessibility.spec.js
index f28a2b1..4a7422c 100644
--- a/tests/ui/accessibility.spec.js
+++ b/tests/ui/accessibility.spec.js
@@ -76,3 +76,22 @@ test('A4b: multi-slide photo strips have accessible prev/next controls', async (
     await expect(page.locator('.strip-prev').first()).toHaveAttribute('aria-label', 'Previous photo');
     await expect(page.locator('.strip-next').first()).toHaveAttribute('aria-label', 'Next photo');
 });
+
+// ── A5: GPX delete button unique accessible names ──────────────────────────────
+test('A5: GPX delete buttons have unique aria-labels per filename', async ({ page }) => {
+    await page.route('**/api/v1/pages**/media', async route => {
+        await route.fulfill({
+            status: 200,
+            contentType: 'application/json',
+            body: JSON.stringify({
+                data: [
+                    { filename: 'tokyo-day1.gpx', size: 102400, modified: '2026-03-25T10:00:00Z' }
+                ]
+            })
+        });
+    });
+    await page.goto('/gpx-manager');
+    const deleteBtn = page.locator('.gpx-trip').first().locator('.gpx-delete[data-filename="tokyo-day1.gpx"]');
+    await expect(deleteBtn).toBeVisible();
+    await expect(deleteBtn).toHaveAttribute('aria-label', 'Delete tokyo-day1.gpx');
+});