diff --git a/frontend/tests/endpoints.spec.ts b/frontend/tests/endpoints.spec.ts
index 32b2de8..6e384f1 100644
--- a/frontend/tests/endpoints.spec.ts
+++ b/frontend/tests/endpoints.spec.ts
@@ -58,9 +58,18 @@ test.beforeAll(async ({ browser }) => {
       config: { target: `${flowName}.level` },
     },
   ]
-  await api(page, `/dashboards/${dashboardName}`, {
-    method: "PUT",
-    data: dashboard,
+  const draft = await (
+    await api(page, `/dashboards/${dashboardName}`, {
+      method: "PUT",
+      data: dashboard,
+    })
+  ).json()
+  // A dashboard edit is a draft, and the flow canvas draws the controls the
+  // panels actually carry — so the endpoint only exists once this is published,
+  // the same way the flow above had to be.
+  await api(page, `/dashboards/${dashboardName}/publish`, {
+    method: "POST",
+    data: { version: draft.version },
   })
   await page.close()
 })