diff --git a/rustls-libssl/dist/bin/rustls-libssl-nginx b/rustls-libssl/dist/bin/rustls-libssl-nginx
index e7804b4..5e1aed7 100755
--- a/rustls-libssl/dist/bin/rustls-libssl-nginx
+++ b/rustls-libssl/dist/bin/rustls-libssl-nginx
@@ -3,7 +3,7 @@
 NGINX_DROP_IN_DIR=/etc/systemd/system/nginx.service.d/
 DROP_IN=/usr/share/rustls-libssl/50-rustls-libssl.conf
 
-distro=$(lsb_release --short --id 2>/dev/null || echo "Unknown")
+distro=$(. /etc/lsb-release && echo $DISTRIB_ID || echo "Unknown")
 
 case $distro in
 "Debian")