diff --git a/unit-test-security-rules-v9/test/utils.ts b/unit-test-security-rules-v9/test/utils.ts
index ede40edf..52f6c62d 100644
--- a/unit-test-security-rules-v9/test/utils.ts
+++ b/unit-test-security-rules-v9/test/utils.ts
@@ -45,7 +45,7 @@ export function getDatabaseCoverageMeta(databaseName: string, firebaseJsonPath:
 
 export async function expectFirestorePermissionDenied(promise: Promise<any>) {
   const errorResult = await assertFails(promise);
-  expect(errorResult.code).toBe('permission-denied' || 'PERMISSION_DENIED');
+  expect(errorResult.code).toBe('permission-denied');
 }
 
 export async function expectDatabasePermissionDenied(promise: Promise<any>) {
diff --git a/unit-test-security-rules/test/utils.ts b/unit-test-security-rules/test/utils.ts
index e6ca6e4b..f635e0bc 100644
--- a/unit-test-security-rules/test/utils.ts
+++ b/unit-test-security-rules/test/utils.ts
@@ -45,7 +45,7 @@ export function getDatabaseCoverageMeta(databaseName: string, firebaseJsonPath:
 
 export async function expectFirestorePermissionDenied(promise: Promise<any>) {
   const errorResult = await assertFails(promise);
-  expect(errorResult.code).toBe('permission-denied' || 'PERMISSION_DENIED');
+  expect(errorResult.code).toBe('permission-denied');
 }
 
 export async function expectDatabasePermissionDenied(promise: Promise<any>) {