diff --git a/pytest.ini b/pytest.ini
deleted file mode 100644
index cda68440..00000000
--- a/pytest.ini
+++ /dev/null
@@ -1,7 +0,0 @@
-[tool:pytest]
-strict = true
-addopts = -ra
-testpaths = tests
-filterwarnings =
-    once::Warning
-    ignore:::pympler[.*]
diff --git a/tox.ini b/tox.ini
index 75480fe4..92ab01ef 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,3 +1,12 @@
+[pytest]
+strict = true
+addopts = -ra
+testpaths = tests
+filterwarnings =
+    once::Warning
+    ignore:::pympler[.*]
+
+
 [tox]
 envlist = typing,lint,py27,py34,py35,py36,py37,py38,pypy,pypy3,manifest,docs,pypi-description,changelog,coverage-report
 isolated_build = True