diff --git a/comanage-registry-cron/Dockerfile b/comanage-registry-cron/Dockerfile
index 2b1ec62..6dea3d5 100644
--- a/comanage-registry-cron/Dockerfile
+++ b/comanage-registry-cron/Dockerfile
@@ -28,6 +28,7 @@ RUN apt-get update \
 
 COPY --chown=root:root root-crontab /etc/crontab
 COPY --chown=root:root www-data-crontab /srv/comanage-registry/local/crontab
+COPY --chown=root:root ldap.conf /etc/ldap/ldap.conf
 
 RUN /usr/bin/crontab -u www-data /srv/comanage-registry/local/crontab \
       && /usr/sbin/usermod --shell /bin/bash www-data \
diff --git a/comanage-registry-cron/ldap.conf b/comanage-registry-cron/ldap.conf
new file mode 100644
index 0000000..f58fc0e
--- /dev/null
+++ b/comanage-registry-cron/ldap.conf
@@ -0,0 +1 @@
+TLS_CACERT /etc/ssl/certs/ca-certificates.crt