diff --git a/setup.cfg b/setup.cfg
index 6fe8b3f..89e47be 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [tool:pytest]
-addopts = -v --cov attract --cov-report term-missing --ignore node_modules --ff
+addopts = -v --cov attract --cov-report term-missing --ignore node_modules -x
 
 [pep8]
 max-line-length = 100