diff --git a/pages/_includes/ui/chart.html b/pages/_includes/ui/chart.html
index 3ca91622f..43cf38f99 100644
--- a/pages/_includes/ui/chart.html
+++ b/pages/_includes/ui/chart.html
@@ -13,7 +13,7 @@
 {% assign data = site.data.charts[data.extend] | concat_objects: site.data.charts[include.chart-id] %}
 {% endif %}
 
-<div id="chart-{{ id }}" {% if class %} class="{{ class }}" {% endif %}{% if data.debug %} style="outline: 1px solid red" {% endif %}></div>
+<div id="chart-{{ id }}" {% if class %} class="{{ class }}" {% endif %}{% if data.debug and jekyll.environment == 'production' %} style="outline: 1px solid red" {% endif %}></div>
 
 {% append_lib apexcharts %}
 {% capture script %}