diff --git a/docs/guide/start-installation.md b/docs/guide/start-installation.md
index 1b09eeb3df7..d6c7359f6c9 100644
--- a/docs/guide/start-installation.md
+++ b/docs/guide/start-installation.md
@@ -208,7 +208,7 @@ server {
 
     location / {
         # Redirect everything that isn't a real file to index.php
-        try_files $uri $uri/ /index.php?$args;
+        try_files $uri $uri/ /index.php$is_args$args;
     }
 
     # uncomment to avoid processing of calls to non-existing static files by Yii
@@ -219,7 +219,7 @@ server {
 
     location ~ \.php$ {
         include fastcgi_params;
-        fastcgi_param SCRIPT_FILENAME $document_root/$fastcgi_script_name;
+        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
         fastcgi_pass   127.0.0.1:9000;
         #fastcgi_pass unix:/var/run/php5-fpm.sock;
         try_files $uri =404;