diff --git a/runner/Dockerfile b/runner/Dockerfile
index fc10a30..22378da 100644
--- a/runner/Dockerfile
+++ b/runner/Dockerfile
@@ -3,4 +3,4 @@ ENV GITEA_INSTANCE_URL=""
 ENV GITEA_RUNNER_REGISTRATION_TOKEN=""
 ENV GITEA_RUNNER_NAME="fly-runner"
 ENV GITEA_RUNNER_LABELS="fly,self-hosted,linux"
-CMD sh -c 'test -f /data/.registered || gitea-runner register --no-interactive --instance "${GITEA_INSTANCE_URL}" --token "${GITEA_RUNNER_REGISTRATION_TOKEN}" --name "${GITEA_RUNNER_NAME}" --labels "${GITEA_RUNNER_LABELS}" && touch /data/.registered; exec gitea-runner daemon'
+CMD sh -c 'if [ ! -f /data/.registered ]; then gitea-runner register --no-interactive --instance "${GITEA_INSTANCE_URL}" --token "${GITEA_RUNNER_REGISTRATION_TOKEN}" --name "${GITEA_RUNNER_NAME}" --labels "${GITEA_RUNNER_LABELS}" && touch /data/.registered; fi; exec gitea-runner daemon'