diff --git a/app.rb b/app.rb
index 0d62a4a..e1dfc8e 100644
--- a/app.rb
+++ b/app.rb
@@ -65,3 +65,7 @@ end
 get '/aliens' do
   haml :aliens
 end
+
+not_found do
+  haml :not_found
+end
\ No newline at end of file
diff --git a/views/not_found.haml b/views/not_found.haml
new file mode 100644
index 0000000..d13fdff
--- /dev/null
+++ b/views/not_found.haml
@@ -0,0 +1,7 @@
+.grid_9
+  %h1 Not Found
+  
+  %p Oops, we can't find that page.
+  
+  %p
+    %a{ :href => '/' }Go back to the home page
\ No newline at end of file