diff --git a/.forgejo/scripts/cultural-groups.js b/.forgejo/scripts/cultural-groups.js
index 8d6bf7c..4702067 100644
--- a/.forgejo/scripts/cultural-groups.js
+++ b/.forgejo/scripts/cultural-groups.js
@@ -156,7 +156,12 @@ function splitByCulturalGroup(filePath) {
                 // Add all lines of the entry to the appropriate cultural group
                 if (currentCulturalGroup) {
                     if (!groups[currentCulturalGroup]) {
-                        groups[currentCulturalGroup] = ['#EXTM3U'];
+                        groups[currentCulturalGroup] = [
+                            '#EXTM3U',
+                            '# WARNING: This file is auto-generated from mystique.m3u',
+                            '# Do not edit this file directly - edit the main mystique.m3u instead',
+                            '#'
+                        ];
                     }
                     groups[currentCulturalGroup].push(...currentEntry);
                 }