diff --git a/tests/test.env b/tests/test.env
index eb98387a7d..ef8307a158 100644
--- a/tests/test.env
+++ b/tests/test.env
@@ -6,6 +6,7 @@ UPDATE_HOMEPAGE_EVERY=0
 CHECK_DB_EVERY=0
 RAISE_SIGNIN_NOTIFICATIONS=yes
 GRATIPAY_CACHE_STATIC=yes
+EMAIL_QUEUE_FLUSH_EVERY=0
 
 BRAINTREE_MERCHANT_ID=j9gwdfjdkxymhdgr
 BRAINTREE_PUBLIC_KEY=2fyqjt5qs3g4vwqf