diff --git a/net-mgmt/telegraf/src/opnsense/service/templates/OPNsense/Telegraf/telegraf.conf b/net-mgmt/telegraf/src/opnsense/service/templates/OPNsense/Telegraf/telegraf.conf
index acc65c9040..99d7ee3982 100644
--- a/net-mgmt/telegraf/src/opnsense/service/templates/OPNsense/Telegraf/telegraf.conf
+++ b/net-mgmt/telegraf/src/opnsense/service/templates/OPNsense/Telegraf/telegraf.conf
@@ -143,7 +143,7 @@
 {% if helpers.exists('OPNsense.telegraf.output.opentelemetry_enable') and OPNsense.telegraf.output.opentelemetry_enable == '1' %}
 [[outputs.opentelemetry]]
 {%   if helpers.exists('OPNsense.telegraf.output.opentelemetry_server') and OPNsense.telegraf.output.opentelemetry_server != '' %}
-  service_address = {{ OPNsense.telegraf.output.opentelemetry_server }}
+  service_address = "{{ OPNsense.telegraf.output.opentelemetry_server }}"
 {%   endif %}
 {%   if helpers.exists('OPNsense.telegraf.output.opentelemetry_timeout') and OPNsense.telegraf.output.opentelemetry_timeout != '' %}
   timeout = "{{ OPNsense.telegraf.output.opentelemetry_timeout }}s"