diff --git a/server/files/entrypoint_nginx.sh b/server/files/entrypoint_nginx.sh
index 559c27f..25be604 100755
--- a/server/files/entrypoint_nginx.sh
+++ b/server/files/entrypoint_nginx.sh
@@ -170,8 +170,8 @@ fi
 
 if [[ $CERTAUTH = @(optional|on) ]]; then
     echo "Configure NGINX | Enabling SSL Cert Authentication"
-    grep -qxF 'fastcgi_param SSL_CLIENT_I_DN $ssl_client_i_dn;' /etc/nginx/snippets/fastcgi-php.conf || echo 'fastcgi_param SSL_CLIENT_I_DN $ssl_client_i_dn;' >> /etc/nginx/snippets/fastcgi-php.conf
-    grep -qxF 'fastcgi_param SSL_CLIENT_S_DN $ssl_client_s_dn;' /etc/nginx/snippets/fastcgi-php.conf || echo 'fastcgi_param SSL_CLIENT_S_DN $ssl_client_s_dn;' >> /etc/nginx/snippets/fastcgi-php.conf
+    grep -qxF 'fastcgi_param SSL_CLIENT_I_DN $ssl_client_i_dn;' /etc/nginx/snippets/fastcgi-php.conf || echo "fastcgi_param SSL_CLIENT_I_DN \$ssl_client_i_dn;" >> /etc/nginx/snippets/fastcgi-php.conf
+    grep -qxF 'fastcgi_param SSL_CLIENT_S_DN $ssl_client_s_dn;' /etc/nginx/snippets/fastcgi-php.conf || echo "fastcgi_param SSL_CLIENT_S_DN \$ssl_client_s_dn;" >> /etc/nginx/snippets/fastcgi-php.conf
     grep -qF 'ssl_client_certificate' /etc/nginx/sites-enabled/misp || sed -i '/ssl_prefer_server_ciphers/a ssl_client_certificate /etc/nginx/certs/ca.pem;' /etc/nginx/sites-enabled/misp
     grep -qF 'ssl_verify_client' /etc/nginx/sites-enabled/misp || sed -i "/ssl_prefer_server_ciphers/a ssl_verify_client $CERTAUTH;" /etc/nginx/sites-enabled/misp