diff --git a/.drone.yml b/.drone.yml
index 55600b8..d3faf49 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -49,7 +49,7 @@ steps:
   image: xoxys/molecule:gce
   commands:
   - /bin/bash /docker-entrypoint.sh
-  - echo "$MOLECULE_CUSTOM_MODULES_REPO"
+  - "echo \"$MOLECULE_CUSTOM_MODULES_REPO\""
   - molecule create --scenario-name gce-centos-7
   - molecule converge --scenario-name gce-centos-7
   - molecule verify --scenario-name gce-centos-7