diff --git a/cfg/ngx/wa.fo.conf b/cfg/ngx/wa.fo.conf
index 4dedb76..d5403bc 100644
--- a/cfg/ngx/wa.fo.conf
+++ b/cfg/ngx/wa.fo.conf
@@ -54,8 +54,8 @@ server {
     }
 
     # access to certain files
-    location ~ ^/(robots.txt) {
-
+    location ~ ^/(robots.txt|favicon.ico) {
+        # do nothing, which means avoid the postgrest proxy
     }
 
     # /dbg/shortcode | debug mode