diff --git a/Dockerfile b/Dockerfile
index 273a1b8..ff20b6f 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,6 +4,8 @@ ADD links.tar.gz /
 ADD passwd /etc/passwd
 ADD passwd /tmp/proot/delete-me
 
+ENV SSL_CERT_DIR=/etc/ssl/certs
+ENV SSL_CERT_FILE=/etc/ssl/certs/ca-certificates.crt
 ENV GUIX_LOCPATH=/guix-builder/lib/locale
 ENV PROOT_TMP_DIR=/tmp/proot
 RUN rm /tmp/proot/delete-me