diff --git a/tox.ini b/tox.ini
index 98fe8fca9..e61ef1247 100644
--- a/tox.ini
+++ b/tox.ini
@@ -73,32 +73,24 @@ commands =
     {[base]install_and_test} acme[dev]
 setenv =
     {[testenv:py27-oldest]setenv}
-passenv =
-    {[testenv:py27-oldest]passenv}
 
 [testenv:py27-apache-oldest]
 commands =
     {[base]install_and_test} certbot-apache
 setenv =
     {[testenv:py27-oldest]setenv}
-passenv =
-    {[testenv:py27-oldest]passenv}
 
 [testenv:py27-certbot-oldest]
 commands =
     {[base]install_and_test} .[dev]
 setenv =
     {[testenv:py27-oldest]setenv}
-passenv =
-    {[testenv:py27-oldest]passenv}
 
 [testenv:py27-dns-oldest]
 commands =
     {[base]install_and_test} {[base]dns_packages}
 setenv =
     {[testenv:py27-oldest]setenv}
-passenv =
-    {[testenv:py27-oldest]passenv}
 
 [testenv:py27-nginx-oldest]
 commands =
@@ -106,8 +98,6 @@ commands =
     python tests/lock_test.py
 setenv =
     {[testenv:py27-oldest]setenv}
-passenv =
-    {[testenv:py27-oldest]passenv}
 
 [testenv:py27_install]
 basepython = python2.7