diff --git a/extensions/codex/src/app-server/auth-bridge.test.ts b/extensions/codex/src/app-server/auth-bridge.test.ts
index 5f5c8c1268e..9a5f711aaa1 100644
--- a/extensions/codex/src/app-server/auth-bridge.test.ts
+++ b/extensions/codex/src/app-server/auth-bridge.test.ts
@@ -1583,6 +1583,7 @@ describe("bridgeCodexAppServerStartOptions", () => {
     });
     vi.stubEnv("CODEX_API_KEY", "codex-env-api-key");
     vi.stubEnv("OPENAI_API_KEY", "openai-env-api-key");
+    vi.stubEnv("CODEX_HOME", path.join(agentDir, "codex-home"));
     try {
       await applyCodexAppServerAuthProfile({
         client: { request } as never,
@@ -1777,6 +1778,7 @@ describe("bridgeCodexAppServerStartOptions", () => {
     });
     vi.stubEnv("CODEX_API_KEY", "codex-env-api-key");
     vi.stubEnv("OPENAI_API_KEY", "openai-env-api-key");
+    vi.stubEnv("CODEX_HOME", path.join(agentDir, "codex-home"));
     try {
       await applyCodexAppServerAuthProfile({
         client: { request } as never,