diff --git a/.travis.yml b/.travis.yml
index 593bbb2..bce4461 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,4 +14,4 @@ install:
 jobs:
   include:
     - stage: test
-      script: xvfb-run python3 tests/run_tests.py
+      script: xvfb-run -a python3 tests/run_tests.py