diff --git a/.drone.yml b/.drone.yml
index 97e1315..0cc8ac0 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -31,6 +31,7 @@ steps:
     - env
     - echo ${PATH}
     - echo $${PATH}
+    - echo $DISPLAY
     - echo ${DISPLAY}
     - echo $${DISPLAY}
     - echo ${NVIDIA_VISIBLE_DEVICES}