diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7ab84a5..b428ddd 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -5,6 +5,7 @@ tests:
   stage: Test
   variables:
     QT_QPA_PLATFORM: "offscreen"
+    XDG_RUNTIME_DIR: "/tmp/runtime-root"
 
   script:
     - pip install pytest pytest-random-order pytest-cov