diff --git a/.drone.yml b/.drone.yml
index b00502d..f10f3bb 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -34,7 +34,7 @@ steps:
   - cd ${DRONE_REPO_NAME}
   - molecule test
   environment:
-    - MOLECULE_DISTRO=${DISTRO}
+    MOLECULE_DISTRO: ${DISTRO}
 - name: notify by email
   image: drillster/drone-email
   settings: