diff --git a/organizr-auth.subfolder.conf.sample b/organizr-auth.subfolder.conf.sample
index 60c9725..849b264 100644
--- a/organizr-auth.subfolder.conf.sample
+++ b/organizr-auth.subfolder.conf.sample
@@ -32,5 +32,5 @@ location ~ /auth-([0-9]+) {
 }
 
 # Optional redirect server authentication errors to organizr authentication page
-# NOTE: $server_name must be modified to your public URL when using subdomain proxies
-#error_page 401 $scheme://$server_name/?error=$status&return=$request_uri;
+# NOTE: $host must be modified to your public URL when using subdomain proxies
+#error_page 401 $scheme://$host/?error=$status&return=$request_uri;
diff --git a/organizr.subdomain.conf.sample b/organizr.subdomain.conf.sample
index d92b2bb..496af32 100644
--- a/organizr.subdomain.conf.sample
+++ b/organizr.subdomain.conf.sample
@@ -29,6 +29,6 @@ server {
     }
 
     # Optional redirect server errors to organizr error pages
-    #error_page 400 402 403 404 405 408 500 502 503 504  $scheme://$server_name/?error=$status;
+    #error_page 400 402 403 404 405 408 500 502 503 504  $scheme://$host/?error=$status;
 
 }
diff --git a/organizr.subfolder.conf.sample b/organizr.subfolder.conf.sample
index 8a0bba0..4cad9f2 100644
--- a/organizr.subfolder.conf.sample
+++ b/organizr.subfolder.conf.sample
@@ -16,4 +16,4 @@ location / {
 }
 
 # Optional redirect server errors to organizr error pages
-#error_page 400 402 403 404 405 408 500 502 503 504  $scheme://$server_name/?error=$status;
+#error_page 400 402 403 404 405 408 500 502 503 504  $scheme://$host/?error=$status;