diff --git a/.drone.yml b/.drone.yml
index 69ce320..04c9e33 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -6,7 +6,7 @@ steps:
   - name: Prepare
     commands:
       - eval $(ssh-agent -s)
-      - ssh-add - <<< "${SSH_PRIVATE_KEY}"
+      - ssh-add - <<< "$SSH_PRIVATE_KEY"
     environment:
       SSH_PRIVATE_KEY:
         from_secret: SSH_PRIVATE_KEY