diff --git a/etc/nginx/sites-available/rpicam.1 b/etc/nginx/sites-available/rpicam.1
index a905b88a..8225dd80 100644
--- a/etc/nginx/sites-available/rpicam.1
+++ b/etc/nginx/sites-available/rpicam.1
@@ -13,6 +13,7 @@ server {
             if (!-f $document_root$fastcgi_script_name) {
                     return 404;
             }
+            fastcgi_param SCRIPT_FILENAME $document_root/$fastcgi_script_name;
             fastcgi_pass unix:/var/run/php5-fpm.sock;
             fastcgi_index index.php;
             include fastcgi_params;