diff --git a/templates/etc/nginx/upstream/upstream.conf.j2 b/templates/etc/nginx/upstream/upstream.conf.j2
index e647807..4fd7d21 100644
--- a/templates/etc/nginx/upstream/upstream.conf.j2
+++ b/templates/etc/nginx/upstream/upstream.conf.j2
@@ -1,6 +1,6 @@
 {%- macro s(key, value, is_bool, min_version) %}
 {% if nginx_version.stdout | version_compare(min_version, 'ge') %}
-{% if is_bool and value %} {{ key }}{% else %} {{ key }}={{ value }}{% endif %}
+{% if is_bool and value %} {{ key }}{% elif not is_bool %} {{ key }}={{ value }}{% endif %}
 {% endif %}
 {%- endmacro -%}
 #