diff --git a/content/docs/static-files.md b/content/docs/static-files.md
index d28ff30..fcb3666 100644
--- a/content/docs/static-files.md
+++ b/content/docs/static-files.md
@@ -10,6 +10,7 @@ It is possible to serve static files with a custom path pattern and `NamedFile`.
 match a path tail, we can use a `[.*]` regex.
 
 ```rust
+extern crate actix_web;
 use std::path::PathBuf;
 use actix_web::{App, HttpRequest, Result, http::Method, fs::NamedFile};
 
@@ -32,6 +33,7 @@ To serve files from specific directories and sub-directories, `StaticFiles` can
 it will be unable to serve sub-paths.
 
 ```rust
+extern crate actix_web;
 use actix_web::{App, fs};
 
 fn main() {
@@ -39,6 +41,7 @@ fn main() {
         .handler(
             "/static",
             fs::StaticFiles::new(".")
+                .unwrap()
                 .show_files_listing())
         .finish();
 }
@@ -123,7 +126,7 @@ fn main() {
     App::new()
         .handler(
             "/static",
-            StaticFiles::with_config(".", MyConfig)
+            StaticFiles::with_config(".", MyConfig).unwrap()
                 .show_files_listing()
         ).finish();
 }