diff --git a/.gitlab/ci/dokku.gitlab-ci.yml b/.gitlab/ci/dokku.gitlab-ci.yml
index a68a63722c36b27655546b8e3287a8e8bda599a9..a5b7c66d2ed27af3e5d3108df745927bb08a6307 100644
--- a/.gitlab/ci/dokku.gitlab-ci.yml
+++ b/.gitlab/ci/dokku.gitlab-ci.yml
@@ -15,6 +15,6 @@
     - chmod 400 "$SSH_PRIVATE_KEY_FILE"
     - ssh-add "$SSH_PRIVATE_KEY_FILE"
     - mkdir -p "$HOME/.ssh" && chmod 700 "$HOME/.ssh"
-    - echo -e "Host *\n\tStrictHostKeyChecking no\n\n" >> $HOME/.ssh/config"
+    - echo -e "Host *\n\tStrictHostKeyChecking no\n\n" >> "$HOME/.ssh/config"
     - dokku version
   dependencies: []