diff --git a/tox.ini b/tox.ini
index 4508d35ccc93..869d2edb937f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -26,14 +26,14 @@ passenv = OS_DEBUG GENERATE_HASHES
 [testenv:py27]
 commands =
     {[testenv]commands}
+    env TEST_OSPROFILER=1 ostestr --regex 'nova.tests.unit.test_profiler'
     ostestr '{posargs}'
-    env TEST_OSPROFILER=1 ostestr 'nova.tests.unit.test_profiler'
 
 [testenv:py35]
 commands =
     {[testenv]commands}
+    env TEST_OSPROFILER=1 ostestr --regex 'nova.tests.unit.test_profiler'
     bash tools/pretty_tox3.sh '{posargs}'
-    env TEST_OSPROFILER=1 ostestr 'nova.tests.unit.test_profiler'
 
 [testenv:pep8]
 basepython = python2.7