diff --git a/packages/test-utils/src/test-rig.ts b/packages/test-utils/src/test-rig.ts
index 9648751339..7a74dc9082 100644
--- a/packages/test-utils/src/test-rig.ts
+++ b/packages/test-utils/src/test-rig.ts
@@ -485,6 +485,7 @@ export class TestRig {
         key !== 'GEMINI_MODEL' &&
         key !== 'GEMINI_DEBUG' &&
         key !== 'GEMINI_CLI_TEST_VAR' &&
+        key !== 'GEMINI_CLI_INTEGRATION_TEST' &&
         !key.startsWith('GEMINI_CLI_ACTIVITY_LOG')
       ) {
         delete cleanEnv[key];