diff --git a/Containerfile b/Containerfile
index e67a3b1..77cb08f 100644
--- a/Containerfile
+++ b/Containerfile
@@ -31,5 +31,7 @@ ENV PATH="/app/.venv/bin:$PATH" \
     PYTHONUNBUFFERED=1
 VOLUME /data
 EXPOSE 8080
+# waitress avslutter rent på SIGINT; SIGTERM ignoreres når den kjører som PID 1.
+STOPSIGNAL SIGINT
 HEALTHCHECK --interval=30s --timeout=3s CMD curl -fsS http://localhost:8080/ >/dev/null || exit 1
 CMD ["soapbox", "serve"]