diff --git a/tox.ini b/tox.ini
index 3943e0ab..28ab69ee 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py{35,27}-{postgresql,},pep8,bandit,docs
+envlist = py{35,27},py{35,27}-{postgresql},pep8,bandit,docs
 
 [testenv]
 usedevelop = True
@@ -21,7 +21,7 @@ commands =
 [testenv:py27]
 commands =
     {[testenv]commands}
-    ostestr '{posargs}'
+    ostestr --regex '{posargs}'
 
 [testenv:py27-postgresql]
 commands =
@@ -31,7 +31,7 @@ commands =
 [testenv:py35]
 commands =
     {[testenv]commands}
-    ostestr '{posargs}'
+    ostestr --regex '{posargs}'
 
 [testenv:py35-postgresql]
 commands =