diff --git a/.drone.yml b/.drone.yml
index 735fa83..dd6bf52 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -23,7 +23,7 @@ steps:
   image: chialab/php
   commands:
   - sleep 10
-  - URL=testserver:8080 vendor/bin/phpunit tests
+  - URL=http://testserver:8080 vendor/bin/phpunit tests
 
 services: