diff --git a/cfg/ngx/wa.fo.conf b/cfg/ngx/wa.fo.conf
index d5403bc..039e256 100644
--- a/cfg/ngx/wa.fo.conf
+++ b/cfg/ngx/wa.fo.conf
@@ -53,8 +53,12 @@ server {
         error_page 404 = @myownredirect;
     }
 
+    # enable maintenance mode
+    location ~ ^/(index.html) {
+    }
+
     # access to certain files
-    location ~ ^/(robots.txt|favicon.ico) {
+    location ~ ^/(robots.txt|favicon.ico|Inconsolata.ttf) {
         # do nothing, which means avoid the postgrest proxy
     }