diff --git a/.drone.yml b/.drone.yml
index 4b5b287..b3d7c16 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -17,7 +17,7 @@ steps:
   - name: compute cache key
     image: docker.io/library/elixir:1.18.3-otp-27
     commands:
-      - echo "$DRONE_REPO_OWNER/$DRONE_REPO_NAME/" >> .cache_key
+      - echo "$DRONE_REPO_OWNER/$DRONE_REPO_NAME" >> .cache_key
       - echo $(sha256sum mix.lock) >> .cache_key
       # Print cache key for debugging
       - cat .cache_key
@@ -89,6 +89,7 @@ steps:
       rebuild: true
       mount:
         - ./deps
+        - ./_build
     volumes:
       - name: cache
         path: /tmp/cache