diff --git a/tox.ini b/tox.ini
index 7d6cb67..605bd72 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,7 +5,9 @@ skip_missing_interpreters = True
 skipsdist = True
 
 [testenv]
-deps = -r requirements.txt -r test-requirements.txt
+deps =
+    -r requirements.txt
+    -r test-requirements.txt
 setenv =
     PYTHONPATH={toxinidir}
 commands =