diff --git a/Caddyfile b/Caddyfile
index 322a3b289fa1efdaa447da7d4ccea5feae0f5495..cb42b54105ff8d3cf844db95ef664d5941927774 100644
--- a/Caddyfile
+++ b/Caddyfile
@@ -4,7 +4,7 @@ http:// {
     file_server
 
     header {
-        Content-Security-Policy default-src 'self' *.teckids.org; img-src 'self' data: *.teckids.org; media-src 'self' *.teckids.org; object-src 'self' *.teckids.org; frame-src 'self' *.teckids.org; form-action 'self' *.teckids.org
+        Content-Security-Policy "default-src 'self' *.teckids.org; img-src 'self' data: *.teckids.org; media-src 'self' *.teckids.org; object-src 'self' *.teckids.org; frame-src 'self' *.teckids.org; form-action 'self' *.teckids.org"
         X-Content-Type-Options  nosniff
         Referrer-Policy         strict-origin-when-cross-origin
     }