diff --git a/nextcloud/Dockerfile b/nextcloud/Dockerfile
index 7b9cb73..5a7f1d8 100644
--- a/nextcloud/Dockerfile
+++ b/nextcloud/Dockerfile
@@ -8,6 +8,9 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
    ffmpeg \
    ocrmypdf tesseract-ocr-deu \
    procps \
+   libbz2-dev bzip2 \
    && rm -rf /var/lib/apt/lists/*
 
+RUN docker-php-ext-install bz2
+
 RUN mkdir -p /var/spool/cron/crontabs; echo '* * * * * php -f /var/www/html/cron.php' > /var/spool/cron/crontabs/www-data