diff --git a/public/thumbnails/.htaccess b/public/thumbnails/.htaccess
new file mode 100644
index 0000000..46a1041
--- /dev/null
+++ b/public/thumbnails/.htaccess
@@ -0,0 +1,5 @@
+RewriteEngine On
+# Check if the requested file does not exist
+RewriteCond %{REQUEST_FILENAME} !-f
+# If it doesn't exist, serve the unknown.webp file
+RewriteRule ^.*$ /path/to/unknown.webp [L]