diff --git a/src/daemon/launchd.test.ts b/src/daemon/launchd.test.ts
index 18db288d93c..84f931adc9a 100644
--- a/src/daemon/launchd.test.ts
+++ b/src/daemon/launchd.test.ts
@@ -249,6 +249,14 @@ vi.mock("node:fs/promises", async () => {
     unlink: vi.fn(async (p: string) => {
       state.files.delete(p);
     }),
+    readFile: vi.fn(async (p: string) => {
+      const key = p;
+      const data = state.files.get(key);
+      if (data !== undefined) {
+        return data;
+      }
+      throw new Error(`ENOENT: no such file or directory, read '${key}'`);
+    }),
     writeFile: vi.fn(async (p: string, data: string, opts?: { mode?: number }) => {
       const key = p;
       state.files.set(key, data);
@@ -490,7 +498,6 @@ describe("launchd install", () => {
     const plistPath = resolveLaunchAgentPlistPath(env);
     state.serviceLoaded = false;
     state.kickstartError = "Could not find service";
-    state.kickstartCode = 113;
     state.kickstartFailuresRemaining = 1;
     state.files.set(
       plistPath,