diff --git a/.drone.yml b/.drone.yml
index 6a7a134..2891c0b 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -55,6 +55,7 @@ steps:
     commands:
       - mkdir $HOME/.ssh
       - echo "$SSH_KEY" > $HOME/.ssh/id_ed25519
+      - chmod 600 $HOME/.ssh/id_ed25519
       - touch $HOME/.ssh/known_hosts
       - chmod 600 $HOME/.ssh/known_hosts
       - ssh-keyscan -H git.2martens.de > $HOME/.ssh/known_hosts 2>/dev/null