diff --git a/.drone.yml b/.drone.yml
index b94b42e..1a79be6 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -28,7 +28,7 @@ steps:
       - name: dockersock
         path: /var/run/docker.sock
     commands:
-      - sh -c 'docker build -t xena/lewa:$DRONE_COMMIT .'
+      - cd book && sh -c 'docker build -t xena/lewa:$DRONE_COMMIT .'
 
 volumes:
   - name: book