diff --git a/tox.ini b/tox.ini
index 04715cc2f..41cc2d807 100644
--- a/tox.ini
+++ b/tox.ini
@@ -31,7 +31,7 @@ dns_packages =
     certbot-dns-sakuracloud
 all_packages =
     acme[dev] \
-    .[dev] \
+    certbot[dev] \
     certbot-apache \
     {[base]dns_packages} \
     certbot-nginx \
@@ -92,7 +92,7 @@ setenv =
 
 [testenv:py27-certbot-oldest]
 commands =
-    {[base]install_and_test} .[dev]
+    {[base]install_and_test} certbot[dev]
 setenv =
     {[testenv:py27-oldest]setenv}