diff --git a/view/layout/main.pug b/view/layout/main.pug
index 61f1014..8835783 100644
--- a/view/layout/main.pug
+++ b/view/layout/main.pug
@@ -33,6 +33,13 @@ html(style='overflow-y:auto' lang='en_US')
 
         block head 
     body(style='overflow-y:auto')
+        if (process.env.APP_DEBUG == 'true')
+            p(style='color:darkred;font-weight:bold;font-size:16pt;position:fixed;top:50%;left:50%;transform:translate(-50%,-50%);text-align:center;pointer-events:none;opacity:0.25')
+                | Warning: THE WEBSITE IS IN DEBUG MODE!
+                br
+                | If the site is running in production, please
+                br
+                | contact the maintainer and notify them of the issue.
         table(width='100%' height='100%' class='body_table')
             tr
                 td(class='side_menu')