diff --git a/src/cron/cron-protocol-conformance.test.ts b/src/cron/cron-protocol-conformance.test.ts
index 3da74c8743..3eebfa2909 100644
--- a/src/cron/cron-protocol-conformance.test.ts
+++ b/src/cron/cron-protocol-conformance.test.ts
@@ -1,7 +1,7 @@
 import fs from "node:fs/promises";
 import path from "node:path";
 import { describe, expect, it } from "vitest";
-import { MACOS_APP_SOURCES_DIR } from "../compat/legacy-names.js";
+import { LEGACY_MACOS_APP_SOURCES_DIR, MACOS_APP_SOURCES_DIR } from "../compat/legacy-names.js";
 import { CronPayloadSchema } from "../gateway/protocol/schema.js";
 
 type SchemaLike = {
@@ -30,7 +30,26 @@ function extractCronChannels(schema: SchemaLike): string[] {
 
 const UI_FILES = ["ui/src/ui/types.ts", "ui/src/ui/ui-types.ts", "ui/src/ui/views/cron.ts"];
 
-const SWIFT_FILES = [`${MACOS_APP_SOURCES_DIR}/GatewayConnection.swift`];
+const SWIFT_FILE_CANDIDATES = [
+  `${MACOS_APP_SOURCES_DIR}/GatewayConnection.swift`,
+  `${LEGACY_MACOS_APP_SOURCES_DIR}/GatewayConnection.swift`,
+];
+
+async function resolveSwiftFiles(cwd: string): Promise<string[]> {
+  const matches: string[] = [];
+  for (const relPath of SWIFT_FILE_CANDIDATES) {
+    try {
+      await fs.access(path.join(cwd, relPath));
+      matches.push(relPath);
+    } catch {
+      // ignore missing path
+    }
+  }
+  if (matches.length === 0) {
+    throw new Error(`Missing Swift cron definition. Tried: ${SWIFT_FILE_CANDIDATES.join(", ")}`);
+  }
+  return matches;
+}
 
 describe("cron protocol conformance", () => {
   it("ui + swift include all cron providers from gateway schema", async () => {
@@ -45,7 +64,8 @@ describe("cron protocol conformance", () => {
       }
     }
 
-    for (const relPath of SWIFT_FILES) {
+    const swiftFiles = await resolveSwiftFiles(cwd);
+    for (const relPath of swiftFiles) {
       const content = await fs.readFile(path.join(cwd, relPath), "utf-8");
       for (const channel of channels) {
         const pattern = new RegExp(`\\bcase\\s+${channel}\\b`);
@@ -61,7 +81,8 @@ describe("cron protocol conformance", () => {
     expect(uiTypes.includes("jobs:")).toBe(true);
     expect(uiTypes.includes("jobCount")).toBe(false);
 
-    const swiftPath = path.join(cwd, SWIFT_FILES[0]);
+    const [swiftRelPath] = await resolveSwiftFiles(cwd);
+    const swiftPath = path.join(cwd, swiftRelPath);
     const swift = await fs.readFile(swiftPath, "utf-8");
     expect(swift.includes("struct CronSchedulerStatus")).toBe(true);
     expect(swift.includes("let jobs:")).toBe(true);